Ace Check out my config... It kinda says it all.
I run RAID 0 because all I care about is performance. I have a filesever for important stuff. Any gamer just cares about frame rates, right? Straight performance is the best way to attack this project. Case modding is kewl, but buy performance, and make it sweet under the hood first, right? I mean really, Get Q3A up around 600fps, then worry about making her easy on the eyes.
That being said, you still need a starting point. A case to get you started would be fine.
If I were to choose a case right now I would probably go for this one <a href="http://shop.harddrive.com/images/p12717b.JPG">here. </a> It's pretty kewl. Not the best one I have seen but not bad for the money. Plus, sleepers rock, hehehe. I personally don't like all the X's all over some of these cases these days. I would stick with a single big window and a custom applique that I created... I dunno, just me, I guess.