I have been given some great advice on putting together my PC here, and I have just ordered it, but I changed some of it, and now I'm in doubt whether my PSU will be good enough. So I looked for some other PSU's, and I realised I had picked a bad one anyway. Now I've chosen another PSU, and I think it should do the trick, but I'd rather be on the safe side, so I'm asking you...
 
Will a Corsair VX450W (You can se specs here) be good enough for this PC:
 
CPU: Intel Core 2 Duo - E6750 - 4MB - 2.66 Ghz (BX80557E6750)
Videocard: Sparkle GeForce 8800GT - 512MB - PCI E (SF-PX88GT512D3-HP)
RAM: Kingston ValueRAM - 4GB(2x2gb) - PC6400 - DDR2 (KVR667D2E5K2/4)
Motherboard: Gigabyte iP35 - ATX - Socket 775 (GA-P35-DS3L)
Harddisc: WD Caviar SE16 - 750GB - 16MB - Sata II (WD7500AAKS)
Sound card: Sound Blaster Live!
Others: CD-RW and possibly an old IDE-Harddisc (but I'm not sure I'll use that at all).
 
Thanks in advance, Mads

Yes, you will be fine with that PSU. If you are considering SLI in the future (not with that mobo obviously), then you will need a beefier one. For what you have now, it will be fine.

The extreme PSU calc came up with about 300watts for your system and with the 8800GT you need 22-26* amps on the +12v rails and that unit has 33. You'll be good.

*this is what is recommended for the card. These are usually based off of heavily loaded systems so you may not need that much. The VX450 has enough so no worries.

Thank you, the amps thing is exactly what my concern about this. The PSU I had chosen before was only 18amps.  
So thanks a lot for the help, I'll order the Corsair right away then.

Yea its good, high efficancy (80+), low noise and just under 400w on the 12v rails.