tigerdirect.com is cheaper than newegg.com 99% of the time. price it out.
amd does not make a rated 3 ghz highest it goes is 2.8 but remember , its 64bit so truely faster.
and as for 64 bit and gaming, it kicks ass. i run a 3200 64 bit and register a processing frequency of 4.0 ghz, so yea.