Question about PSU, CPU and GPU (!)

Hi, I have a OCZ StealthXStream 600W and was wondering if I will have enough power for a Q6600 and either 2x 8800GTS 320MB in sli or 1x 8800GTX. I cannot find the answer anywhere! I am aware that I will need to change the psu if I want 2x 8800GTXs in sli, but I can hardly afford 1 gtx at the moment! Cheers

Yeah, you should be fine...

http://web.aanet.com.au/SnooP/psucalc.php

http://www.extreme.outervision.com/psucalculatorlite.jsp

to verify