Welcome here
325 for the Music Hall + ~450 for the Marantz PM5004 (perhaps someone knows a better price

) leaves 525/425 for the speakers..
There was a thread a while back which had a comparicon on great bookshelfs, but i can't find it now.
There are simply too many brands that have somewhat interesting speakers in this pricerange and I don't know American (adding your location to your profile would be a nice move

) prices well enough to recommend what model to go for.
Over here Monitor audio BX2, Castle Knight 2, KEF IQ30, Wharfedale EVO2 - 10, Mordaunt Short Mezzo 2 would be a couple of options to have a listen at within your pricerange. Over there Infinity, PSB, Paradigm, Audio Engine, SVS are some of the usual suspects, dunno prices and which types to go for as mentioned before and there are a few brands I wanted to mention, but don't come to mind at the moment..
Is used also an option or do you want new speakers?
I would seriously consider goinf for a decent used turntable (eith new cartridge) to make some more budget for speakers available.
The Marantz looks nice btw. Perhaps there is a better deal out there, but it looks like a very decent option to me.
I think you can get the 5004 for less tha 450 btw, it costs les here while USA prices are usually muc hlower on amps.
Perhaps the model it replaces, the 5003, (the same spec wise) is still for sale for much less even.
duplicate thread;
http://www.audiokarma.org/forums/showthread.php?t=350764