Don't get that card - it is overpriced compared to retail and in addition you lose out on manufacturers support, warranty, and have a non-standard heat sink, and no "known" vendor to go back to if buy on eBay.
The best deal right now - if your budget can handle it - is the BFG GTS 250 on sale for $100 AR plus shipping. The card is about 50% faster than the 9600 GT and even if your current system may not take advantage of it all you can carry it into your next system. And it comes with great BFG support and a lifetime warranty.
http://www.frys.com/product/5866223?site=sr:SEARCH:MAIN_RSLT_PG
NOTE = it says the $20 rebate ends TODAY
Also note that it is slightly OC and the 1 GB version - listing says:
Turn on PhysX™, kick it into Stereoscopic 3D and give your eyes something to talk about! Backed by free 24/7/365 world-class tech support and the best lifetime warranty in the industry, the BFG GeForce® GTS 250 OC™ 1GB graphics card is overclocked out of the box and delivers world-class HD graphics performance plus GPU-accelerated NVIDIA® PhysX™ gaming effects, lightning fast video and image processing, and full NVIDIA 3D Vision™ support, allowing you to game in true stereoscopic 3D.
If that one is too expensive, then this option costs $4 less than your eBay card (with shipping included) - the 9800 GT is about 25% faster than a 9600 GT, it comes with a major brand (ASUS) to support it, 3 year warranty, and has a heavy duty heatsink (Glaciator Fansink), Native HDMI Output and your dealing with newegg for a vendor - all for less money,
ASUS EN9800GT/DI/512MD3 GeForce 9800 GT 512MB 256-bit DDR3 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card - Retail - $85 + $7 shipping
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121352&cm_re=9800_gt-_-14-121-352-_-Product
Here is a review on that card - note that their only real complaint is that it is a remake of the 8800GT and technology is maybe outdated. But also note, while they were lamenting about this a year ago and nVidia cards in general, when you look at the THG best gaming card linked below you will see that this card is still on the list as a best buy in the $100 price range and that it and its brothers - the 9600 GT and the GTS 250 - all with the same similar technology - still "rule the roost" over ATI in the $85 tp $120 range.
http://www.overclock3d.net/reviews/gpu_displays/asus_en9800gt_512mb_pci-e/1
And here are the charts on the three - plus I included the 4850 that someone mentioned above:
http://www.tomshardware.com/charts/gaming-graphics-charts-2009/compare,1195.html?prod%5B2465%5D=on&prod%5B2456%5D=on&prod%5B2450%5D=on&prod%5B2473%5D=on
Also note that the 9600 GT, 9800 GT, and GTS 250 essentially rule the roost on the THG list of best cards to buy in the range from approximately $85 to $120 - and the GTS 250 1 GB is listed is the best for $120, although you can buy for $20 less. Such a deal.