Just a note: laptop integrated graphics are now damn impressive.
A buddy of mine just picked up a new laptop for his kid. He didn't want to spend more than $600 and wanted to be able to do some gaming on it. I poked around a bit and pointed him to something running an A10-4600M. It's a decent quad-core CPU paired up with a GPU that is roughly the equivalent of a Radeon 7470. Nothing spectacular, but pretty rad for integrated and perfectly acceptable for 768p
After it showed up from Amazon yesterday I took it home to set it up for him and loaded up some Team Fortress 2 to play on it. At the thing's 768p native resolution, 0xAA/4xAF, max in-game settings, I'm seeing a solid 45-60fps. A bit better than Xbox 360 gaming is now available on dirt-cheap laptops. Just thought it was worthy of note.
I'm slapping Metro 2033 on it now to see how it does with a bit more stressful of game.