What is best choice for GPU upgrade?

[Photo601]

I am running an EVGA 680i board, 500 watt Antec PSU, dual 8800 320 (SLI) EVGA cards 2 gb memory intel core 2 duo processor. I am looking at the
EVGA 01G-P3-1372-TR GeForce GTX 460

I am looking to upgrade my video. Is this card a good fit or can I go higher?

Will any x16 card work on my board?

I understand I may need to upgrade my psu but I am not concerned about that at thus point.

I looked at the other posts but they didn't answer my questions...

Regards

Photo

 

[Tmagic650]

Yes any x16 better video cards will fit in your mid-tower

 

[hellokitty[hk]]

I understand I may need to upgrade my psu but I am not concerned about that at thus point.

Um...Why not?

 

[Tmagic650]

The Antec 500 watt might just be enough right now. It is a quality power supply

 

[Photo601]

I am not immediately concerned about the PSU because it may well depend on what GPU I purchase. Am I going to hit a bottleneck with the higher cards?

 

[klepto12]

i think a 6870 should work fine for ur needs.