No problem. If you ever have any further questions or concerns I'd be happy to help you out.
Part picker is a good deal to sort through parts and GPU boss is a tool that helps you compare benchmark performance on paper for different graphics cards.
Note on something I said earlier, I told you about the 8800/9800 for that price because it came to mind for that price however there could be better cards for that price. For example I have the "SSC" version of this card http://www.ebay.com/itm/EVGA-NVIDIA-GeF ... 3d019a9a7d and it's only $50.
http://gpuboss.com/compare-gpus
http://pcpartpicker.com/parts/video-car ... =1&R=5,4,3
All in all I recommend you don't go below anything less powerful than an 8800. You can use the GPU boss comparison tool to compare.