New PSU Needed

[NeoNemesis]

I currently have a Antec TruePower 330W and its good enough for what I have right now but I want to get a new video card (X800pro or 6800GT), Hard disk, DVD burner and 2 case fans. Ideally how powerful a PSU will I need for this? Also, I will be sticking with Antec because I'm very fond of their PSU's. Also, whats the difference between TruePower and NeoPower?

 

[Jedimoto]

The NeoPower is modular. And a bit more expensive. I know that much. More, I can't say.