Im not sure if this is in the right section(im new) but, Is the PNY GeForce 8400 GS PCI 512MB a good video Card? Its from Staples and it looks like a good video card.
What do you want to acheive with this graphics card? Windows Vista Aero, playing games that are a couple years old, or media centre use? The 8400 is perfect for those.
i would not reccommend this for any sort of gaming for games that are even the slightest bit demanding on the card. it may be able to run games like W.O.W. and diablo 2 ok, and it will be great for multimedia. for any sort of gaming though, go with nothing less than an 8800 gt. that is just my opinion.