Thanks for the tips, but I should have been clearer - I used the component cable while I was waiting to get my 970 Pre/pro, but since then I've been using the DVI-HDMI cable I got from mycablemart.com. They use 28 AWG wire up to 15' and 24 AWG for longer lengths, including the 25' cable I got. It looks like monoprice sells a 25' cable for less, and its 22 AWG ... oh, well. The cable I got works great and has a lifetime warranty, so I guess I'm only out a few bucks.

I appreciate the tips, though, since I'll probably still need more cables, and I hate to pay the ridiculous prices that exotic cables go for, especially for digital. I think there are an awful lot of snake oil salesmen out there getting people to pay too much for magic wire. I'm stunned whenenever I see people write about the greater clarity they hear using optical cable over coax. As long as the bits all get there ... ain't bits just bits?