Brian; with respect, I am an old-school film photographer too, and while I sympathize with you, some of your assertions about digital just aren't true - or at least, they don't have to be. I find this a lot with the crotchety old men like myself - we decide we don't like something and then come with reasons to support it. So please, I mean this with respect.
Go for the C.R.I.S. adaptor to cure the mercury battery problem.
Yes, they are good adapters. Frankly, I was never that into using TTL metering anyway. I love me a good hand-held Sekonic with a 1 degree spot attachment. But I must admit that the TTL metering in my digital SLR cameras does a fine job. Nothing to complain about.
I shoot maybe 2/3rds film and 1/3rd dslr. I find shelving my Leica, Bronica and Rolleiflex just against the grain. My dslr takes longer to setup for a shot that any of the film cameras. My hand held meter, zone focusing and, the Sunny 16 rule is so much faster that drilling down levels and levels of software.
Hehehe, you said 'grain'. Nice film pun. I just sold my Yashica TLR, my Bronicas are next. I never owned a Leica camera, but I've sold all my Leica lenses. However, I could have kept the lenses at least and used them on some of the newer digital cameras, including the m4/3 style electronic viewfinder cameras. A lot of people are doing that and seem to be doing well with it.
It does make me sad that my Bronica C bodies are virtually without value in terms of resale. I'll be giving them away, basically. Ah well. I wasn't using them anymore. Great cameras, but huge, heavy, and sound like a tank racking back a round prior to firing.
With my Pentax dSLR cameras, I don't have to hunt through menus. It's all available through thumbwheels and shows up in the viewfinder.
My "lessor" film cameras include Yashica FX-3, Ashahi S1a and others. I just loaded some APX-100 into my Kionica AA-35 1/2 frame camera that is as shirt pocketable as the little digital things with no viewfinder that you can not get a 3-point hold with. With 72 shots sitting in the pocket, I'm set to go.
I used several smaller cameras of the Konica rangefinder style over the years, and shot some great photos with some of them. But I've *sold* photos I took with a 6MP Kodak point-n-shoot and that was several generations of technology ago. They're really amazing little devices now, and very cheap for what you get.
I like my dslr, the Oly E-520, and the kit lenses ar very good but, it is larger than my Asahi and just as heavy as well as bulkier with hse zooms. The loss of DoF markings kill setting up the zone focusing I use and with the dslr autofocus there is that loss f control. In manual focus you can get some of the control back but, the lenses are not really designed for it as there are no stops.
I use Pentax dSLR cameras (I also have a Sigma SD14). They can be as basic and you want them to be. I don't have to use the menus, and I can make the basic adjustments of shutter speed, aperture, and ISO using knobs and wheels that my finger finds as easily as it once did the knobs on my Canon FX. I see the readouts in my viewfinder.
I also use a custom aftermarket split image viewfinder in my older Pentax, the *ist DS. Works a treat for manual focus, and speaking of manual focus, I don't have a problem with DOF marks or IR focusing or whatever because I *can* mount all my old manual focus Pentax glass on my modern Pentax dSLR bodies with NO modifications, NO adapters, just mount them and they work. I even mount M42 glass from old German cameras for fun; that does require an adapter, but it was the same with M42 lenses on K-mount film bodies, so nothing new since the 1960's there.
My Sigma SD14 is a throwback for those who want it. Looks and feels and acts like a film camera, complete with all the lack of modern conveniences of the more recent digital SLR cameras. It has limited ISO (just like being stuck with whatever roll of film is currently in the camera), it can be slow to use, and the controls are nearly all knobs. I love it, even though it is a PITA to use sometimes. Just 'feels' like a proper camera.
Yeah, I love film. It's also going away, very quickly. If you prefer film still, by all means stick with it. I fully understand and grok your position. Nothing is quite as sensuous as the feel of a high-quality Leica or Zeiss camera or lens in the hand; it's incredible. No one can doubt the quality of the photos such cameras and lenses can produce, either. They have soul, and they have raw technical ability.
It is also fairly said that one had to be a proper photographer to get the best out of these instruments, and modern cameras do good work without requiring that the photographer know what they are doing. Well, that's the way it goes. There are still things that a camera cannot do for the photographer, such as deciding what to take a photograph of, how to frame it, where the point of interest is, and so on. I hear that some of the modern cameras even have menu choices now for things like 'Rule of Thirds'. Yeah, good luck with that; cameras will never know when to break rules, even assuming they can figure out how to apply them.
But having said that, a camera is a tool. Digital cameras can be fantastic tools, and if you choose to get over the bias and look at them honestly, they can be set to work in many of the ways old codgers like you and me find most efficacious. I like shooting full manual on my Pentax dSLR cameras, and I've got exactly as much control as I did when I shot film; even more, since I can also control things like ISO now without hurriedly changing a roll of film mid-roll. All the tricks, all the techniques that I learned in the old days still apply. The only thing that has changed is that my fingers don't smell like fixer anymore.