Hi mate,
If you check out intels 'game compatibility' list here:
http://www.intel.com/support/graphics/sb/CS-010470.htm
It doesnt have WoW, but it shows you it isnt a great card, the following games are:
Game does not operate or issues make game play difficult
City of Heroes
European Air War
Far Cry
Forced Alliance: The Glarious Mandate
Final Fantasy XI
Homeworld: Cataclysm
Hyperbowl
Indiana Jones and The Emperor's Tomb
Joint Operations: Typhoon Rising
NBA Live! 2000
No One Lives Forever 2
Spider-Man: The Movie
Splinter Cell: Pandora Tomorrow
Star Trek: New Worlds
Star Wars Galaxies: An Empire Divided
Thief - Deadly Shadows
Tron 2.0
Uru: Ages Beyond Myst
Now theres quite a few good games up there, and if i was you i would buy a new card...
Quite a few games are also
Game operates with minor issues or workarounds
But i think you could play WoW because if you look at the minimum specs:
Windows
98/ME/2000/XP
800 MHz or higher CPU
256 MB or more of RAM
32 MB 3D graphics card with hardware transform and lighting, such as GeForce 2 or better
4 GB or more of available hard drive space
DirectX 9.0c or above
56k or higher modem with an Internet connection
There pretty damn low
I mean, i can pay Guild Wars at the moment, without a GeForce video card, im using intergreated graphics too...., and the minimum specs are similar.
But if you will want to play more graphically advanced games, such as Far Cry, you really need to upgrade to a new video card
So i think you could play WoW, on minimum quality pretty easy, but not high quality.
Hope that helped you mate