I acquired a copy until its released here on Friday and i've just tested it on my work PC, which is a P4 3.4ghz, 1gb standard ddr and most noticeably a Radeon X600 which retails at about £35, and it was quite happily playable in SP and even better in 1v1 (can only test it on 1on1 on LAN)
Looks to me like all the people panicking about upgrades need to chill out a bit
