Re: Post what you purchased.
I am actually already considering 6320(for that extra cache), waiting for the final availability/prices.
I am not getting a 975 based board because in general, 965 boards have shown better OC'in capability, sure 975 is a better performer clock-to-clock, but high overclockability and better memory performance in 965 will make up for it.
But I do not agree on the DS3($115) and P5B-Delux($190), P5B delux is 65% more costlier than DS3, and there is no board that is better value for money than the DS3, I wouldn't pay extra $75 for a firewire and couple of extra sata ports, Delux might reach little higher FSB because of better cooling, but then I can get 6420 instead of 6320 for less than $75 difference and get a better multiplier and eliminate the need of delux.
But I do have an argument contradicting myself in favor of the delux, the whole point behind getting 6320 and not 6420 was that I wanted to run at high FSB, 1:1 memory, If i got 6420 my processor would hit the wall before I reach 500Mhz, in which case memory will be at around 850-900Mhz, dropping the multiplier will OC north bridge, so I'd rather prefer 6320 and board running at 500FSB, and DS3 v3.3, will do it, but Delux has better chances. But in the end, my decision goes in favor of DS3.
P5B-E is kind of a middle thing between DS3 and P5B-Delux, and I might as well get it if I plan on using RAID, because with DS3, I'm not sure about using RAID.
@darklord
I might in the end get P5B-E, and before I do, I would like u to comment on differences between P5B-E and P5B-Delux, as P5B-E will cost me much less than the Delux, around $55 less. Maybe I'm missing on some positive points of P5B-Delux.