Honestly.I would get the 8800GT and save for a second one a little down the road.2 8600GT's in SLI will disapoint you somewhat as they can't keep up with one 8800GT.I have the EVGA 8800GT superclock edition and it just screams through BIOSHOCK and OBLIVION like sleighing down a snow covered hill in winter.Lots of fun.I have already ordered my other 8800GT,although it might be a week or two till I get it.I will say one more thing.2-8800GTs in SLI will outperform even the 8800GTX SLI in a lot of benchmarks.Goodluck.
Dahak
M2N32-SLI DELUXE WE
X2 5600+ STOCK (2.8GHZ)
2X1GIG DDR2 800 IN DC MODE
TOUGHPOWER 850WATT PSU
EVGA 8800GT SUPERCLOCKED
SMILIDON RAIDMAX GAMING CASE
ACER 22IN WS LCD 1680X1050
250GIG HD/320GIG HD
G5 GAMING MOUSE
LOGITECH Z-5500 5.1 SURROUND SYSTEM
500WATS CONTINUOUS,1000 PEAK
WIN XP MCE SP2
3DMARK05 15,686
3DMARK06 10,588