QUOTE (redmonke @ Oct 4 2009, 06:52 PM)

Ok to see if you have pci-e slots or AGP (although if your computer was made in the last four years it most certainly has pci-e slots) either post the make/model of your computer, or if you're daring, open up the case (while it's off and unplugged) and look for a pci-e slot or an AGP slot. PCI-E is what you want:

Then you can go with this card:
http://www.newegg.com/Product/Product.aspx...N82E16814150393It's cheap and will easily play most all games on the market at med-high settings.
About installation, I'm pretty sure you can just pop it in, install the drivers, then go into the BIOS and turn off the integrated (something like that).
If he wants to spend 150, he ought to
get all he can with that money. I have that card and it's beastly. Runs every game I own on highest, 8x AA 4x Ani, framerates never drop below 40-50fps no matter how much I throw at it. Runs Crysis:Warhead at 40 frames, everything on Very High w/ 8x AA. Or, if you need an HDMI port, you could go with
this. Might not come with a cable though. If you don't need a massive amount of power, you could take one step down with
this card. If you're not really running many demanding games and just want some more punch in the graphics department, go with the 4650 redmonke posted. Also, from reading your original post, it sounds vaguely like you're thinking a video card and a graphics card are two separate things - they are not, just different names for the same thing. Redmonke, to switch from using integrated graphics to using a stand-alone graphics card, you just need to plug your monitor into the card instead of into your motherboard.