What are you guys thinking. He is running a P4 system fully loaded and looking to get a 6800GT. The Antecs ae good and will probably do OK but i would NOT get a 350Watt.
Save your money. The PSU is the most critical part of the computer, DONT SKIMP!
I would get the Seasonic SUper Tornado series, or any of the higher quality PSU's. (OCZ and PCP&C, and Zippy are a bit overkill though). Look at Antec, Enermax, Fortron, Seasonic, Silverstone, Zalman.
Not Tt... there PSU's have weak rails, and poor voltage regulation (ie spikes) They are for entry level systems, not for a system comparable to yours.
-Kevin