I think there's no 'best' RAM. It would depend on your individual needs. I wouldn't know off-hand what would OC best on your board, so I'll leave that to the experts. Generally, I think you'll see a lot of Corsair Dominator, OCZ Reaper, Patriots.. DDR2-1066 are great bargains.
Thought I'd start ya out.
e8400 @ 3.6 GHz <> Corsair 750w <> EVGA 750i FTW <> eVGA 8800GT OC'd > Xig1283 <> 4GB OCZ @ 960mhz <> Samsung F1 750GB <> Samsung Optical & LCD <> TT Armor