The only thing that I would have against using an AV amp/receiver is that they generally have less channel separation than a straight 2-channel amp. (Imaging will suffer as compared to a 2-channel amp)
Unless you really need a tuner I'd recommend looking at an integrated amp. I can't give you any specifics concerning the CA-xxx series because I have no experience with them, but I believe they have the same type of pre-in/main-out as the CR-xxx receivers. Personally I view not having a tuner built in as a plus as there is less to go wrong or need servicing.
The first of the '90s+ integrateds that have true pre-out/main-in are the AX-550, 750, 1050. Then the AX-570, 870 and 1070 and the AX-590/890/1090 series. All of these will do what you want and have MM/MC phono inputs. All of these also support a remote.
The AX series before that point, and all of the "A" series (A-500, 700, 100 & A-520, 720, & 1020 and A-550, 560 etc) will NOT do what you want because they only have an "Accessory Out/In" that is as OMGCat states, before the volume control, or no such jumpers at all. I'm not sure about the AX-592/596, and afaik none of the AX-300 and AX-400 series will work for you (botl).
The best way for you to know exactly what will work for you is to go to HiFi Engine and start downloading owners/service manuals and make a list.
Cheers,
James