Ok, i play World of Warcraft a good amount, and i wanna get a nice monitor and keyboard and mouse, that kind of thing, to make my DESK look nice, and that really has nothing to do with the questions, but i wanna make my computer run better in WoW, MEANING i wanna run it at higher SETTINGS, with less lag. I have a laptop btw, so I cant PERSONALLY put new parts in it, as im not farmiliar with opening laptops and stuff, So heres some information..
Specs for WoW.. http://www.worldofwarcraft.com/info/faq/technology.html

Specs for Laptop
HP pavillion dv6..
Intel core 2 DUO processor P7350 (2.0GHZ)
500GB harddrive..
6144MB DDR2 Ram (6.144 gigs)
Random on-board Video card..
Hope you guys can help! thanks in advance!! Looks like you and I run the same family of PC's

Unfortunately because it's an on-board video card you have little hope of upgrading it(dv6 = dv6000 series of laptops?) . But you can go to your BIOS and increase the amount of video memory for your video card to utilize. I increased my laptop from sixty something to 128MB of memory and it's doing a bit better on my MMO games.

Good luck!