It's an OK card if you are conscious about price. Since it's an entry level DX10 card it should provide you with the latest technology like support for DX10, Shader Model 4, HD-DVD, Blue Ray. It beats having an integrated card.
Go for the 8600GT, it's only a few bucks more. I just build a rig for a nephew and this card is great. If you really want to play DX10 games, you'll have to opt for something higher.