i have for sale a dual channel set of corsairs.
specs:
2 x 512MB sticks
PC2 - 6400
DDR2 - 800
4-4-4-12 @ 2.1v
can easily run 4-4-4-4
Promos chips
overclockable to 1000mhz with proper settings (looser timings and slight voltage increase)
these sticks are only 4 months old, i bought them from...