Looking online, I found a Open Box (Not used, just box opened) HD 7750.
This card is more power efficent, and a bit faster then the GTS450.
It's also a fair bit cheaper then the GTS450 for this Open Box card.http://www.newegg.com/Product/Product.aspx?Item=N82E16814121633R
I've bought a few open box products, worst case they're missing a HDMI cable. If by some chance the card does not work, newegg will replace the product for free.