Where can I find what the differences are between each bios? I don't even really know what bios I need to use, but rather than ask somebody to point me to it and then have no idea what I'm putting on my box, I'd like to learn about it first.
Evox M7 Bios and Matrix Mod/Chameleon work A+ You can get this bios at #xbins on Efnet (You Need MIRC and a FTP Client)
http://www.xbox-scene.com/bios_retail.html this compares most of the bios out right now except 4980 because those just barely came out.
I use the M7 and the matrix, and I have never had a problem backing up any of my games. Some might be over sized but taking out the demo progs fixes most of them, I have not come across a game that would not fit on a DVD or lost any content to fit on a DVD less the demos of course.