The HD 5670 is a good option, the HD 5750 is even better and you may find it almost for the same price.
If you want something cheaper, there are still plenty of cards better than the 9500 GT. I like this chart, it's similar to the one ameratsu posted but it's in text which is great for searching:
http://www.tomshardware.com/reviews/gaming-graphics-card-geforce-gtx-480,2598-6.html
My Mario Kart Wii friend code: 2707-1866-0957







