I have 4 pieces of 512mb Corsair XMS Memory Only used for a day or so while testing last year. This memory is designed for overclocking. The latencies are not that good, but the memory is rated at PC3700 (ie: 975MHz in Intel quad speak, or 231MHz front side bus). The rated latencies are 3-4-3-8 (but you probably will have to run at 3-4-4-8 like their current XMS3700 is setup for. Do not expect to be able to overclock 4 sticks of this RAM by much at all. 2 sticks will overclock much better than 4.
Mfg Part: TWINX1024-3700PT (I'll sale singles though instead of 2)
Opening bid: $50 ea (new is Corsair XMS 3700 3-4-4-8 at $173 ea)
Auction Closes: Wednesday May 12th at 3:42:59 pm
Winning: Highest bid. If not bidding on Qty 4 then next highest bidders win remaining pieces.
Assuming these will work just fine on an Athlon-mobo that isn't overclocked, I'll take two at 50.