500W enough for my new supercomputer?

[jeanone]

Today, I have received my components from Newegg, Crucial and Amazon.
These are based on Rob's "How to build...."
I also got the 'Book'.
Now I started to wonder whether I have too weak power supply.
This is Antec Sonata III minitower EA 500 Esata port 500 Watts.
Should I get Antec 900 with TPQ 850 Power?

My components are:

ASUS M2N32 SLI DLX WIFI AM2
EVGA 640MB P2N829 A3 8800GTS
AMD A64 X2 6400+ 3.2G AM2 2M R
CREATIVE SOUND BLASTER X-Fi SOUND CARD
CRUCIAL RAM 1GBX2 DIMM DDR2 PC2-8500
HD WD 500MB
CPU COOLER ZALLMAN CNPS 9500 AM2 RTL

Monitor is Samsung 305T 30" LCD (this is why I need this computer, esp. Video card with 640Mb nVidia 8800GTS)

500 Watts can drive all these? If I need stronger Power, What's your recommendations?
Please help.

[Jamie Nixx]

Get a Corsair HX520w, its $129.99 on Newegg.

It doesn't matter really about how much wattage a PSU has, its all about quality and for the setup you are building you need a quality PSU.

[Spiffs]

for your graphics card, I heard that the 8800GT is cheaper and more efficient than the 8800GTS

but I can't judge that under the circumstances that you require, and I'm not 100% on computers so I think I'm wrong :)

[Jamie Nixx]

Spiffs you are right, but i think the components are already bought.

[jeanone]

Thank you for quick responses.
I have ordered COOLER MASTER STACKER 830 WHICH HAS A BUILT IN PSU 1000w power supply (from Newegg) since it has a good review and a generous rebate.
Also it has a large room capacity that a beginner (like me) able to work easy.

For 8800GTS---I do not know what to do. Why it is more expensive that GT? (if inferior in quality)

[Jamie Nixx]

The GT came out well after the GTS.

Sometimes newer technology is cheaper than old, which is the case here.