This is probably a basic question, but are 965 chipsets in general "better" then 975? I know 975 has been out longer, but it is a higher #. Doesn't 965 tend to OC better?
The 965 does tend to overclock better and it has native ddr2-800 support. The 975 based boards generally have a better 'stock' featureset and I believe the 965 doesn't allow upwards unlocking of Core 2 Extremes.