Running PC Games on a Laptop

I have a Sony Vaio I use to play games with, but the lag is usually so horrible(I deal with it because I love WOW). Is there ANYTHING at all I can download or some program I can turn on/off to help this? Would lightening my hard drive make a difference?

I know this sounds incredibly stupid, but I won't have any money to buy a desktop for a looong time(stupid rent) so I need something to help for the time being.

>>2  You neeed a graphics card. Your laptop probably doesn't have one.

zoomj