Well having tough luck on the 7.3 beta driver front...noone I have found has posted another download location as of yet...and the ASUS link times out after I get about 20% into the download. I'll keep trying...
On a good note..I found my issue with OC-ing my card, at least to an extent. I noticed that when using ATI Tool's Fuzzy Cube during OC (whether it be the 3D or the Artifact Scanner) kept crashing my Driver R300 (stopped responding and reset message) when I attempted to OC past 614/749. So I decided to try a different 3D test...in this case, good ol' Aquamark. So I tried 621/749...no problems, issues, crashing. I was curious to see what I could get...and on stock bios (well stock settings with fan @ 100% over 39C) I was able to achieve: 634.50 GPU and 776.25 MEMORY! That is great considering my bad luck as of late. I have been running many Aquamark tests to verify. If I go any higher than those settings, then even in the 3D test I'll get that famed R300 Driver message. I'm gonna get 3D Mark 05 and 06 installed, and run one of them in loop while I'm doing laundry and helping my dad replace some parts in his car.
So maybe my issue has to do with the way ATI Tools tests 3D with Vista and 7.2 drivers? I dunno. Card still runs cool...it'll hit up to 53C, but won't stay there. But now I cannot verify prolonged tests with ATI Tool's 3d cube since it will cause that driver crash and reset my speeds. So hell with it, if I can get consistent stability at these speeds, that'll be a major step up for me. And maybe this will help others who've been having the same issue!!