Ditto on:
PCI/AGP lock
R300 -- (how) does AGP8x work? I'd like to know if the implementation is buggy
Sound quality -- I've heard that the MCP-T rivals the Audigy. Don't know if I believe that, but if it's better than my SB Live I'll probably go with the onboard. How does it compare?
Overclocking -- Run it up -- with dual channel memory active.
SATA -- How many devices supported, RAID options, performance (or are they not out yet...)?
Other things I'd like to see:
logistics -- installation, hsf compatibility, placement of headers and connectors
Asus Q-fan -- is it significant?
Performance against a P4 system please! 2700/2800+ against 2.8 or 2400/2600+ against 2.53, GB if you can
Thanks Evan!