...like a new video card. After days of struggling to get my system to run the beta client, I finally narrowed it down (thanks to a ton of people on this board and Teneleven) to the video card. One change, and everything has fallen into place. I only scored 2501 on the low benchmark, but hey, at least I can play now!
(...um Woo, didn't anyone tell you that this beta phase ended on the 25th...?)
...sigh... oh well, see you guys when the next one starts!