Can you suggest a good 8800GT (if possible) or best video card for a 350w PSU on a Dell-built Intel G33 mobo?

Any 8800 GT would do.

dell 350? not sure

but most 350 will not handle the 150w max of the 8800gx

detune or get a non oc one that will help keep things to 100-125w at max

You may not be sure, I am

A Dell 350 won't handle the 150 watt max of the 8800 GX ? What's an 8800 GX and where did you come up with 150w max?

Dell sells the 350w psu in the Vostro with a G33 mb and 8800 GT ( 105w max ), what more is needed to be known.