Is there a reason you don't want to use a Daedalus board (see bunch of ATF entries here). There will need to be some modifications, but besides these minor things it sounds like exactly what you want.
The only major thing is that I stupidly picked the SO8 package version of the BUF634, which can only dissipate less than a watt. Using one of these nifty SO8-to-DIP converters, you can replace it with a TO-220 package and have several watts.
A particularly nice thing is that each board has two channels, if you're into that sort of thing.
Anyway, let me know. I can help you get started when I'm at Caltech later this month if you decide you want it. I need to finish setting up the one for the gyro, anyway.
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To make a low noise current driver, use the BUF634 wrapped around the loop of a low noise opamp (never, ever use the AD797) as illustrated in the BUF634 datasheet.
Don't use a commercial power supply, make a protoboard setup for a NIM box.
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