i think you can be sure that you will be happy with both cards, hovewer:

the Quadro is a great card, even for the price, you will be able to do
all kinds of stuff! like modelling complex 3d-scenes and using
sofware like PS and Z-brush with super ease!
its prolly the best entry level industry card out there!

but, if you are just gonna play wow, then huh?
its def. not worth it for playing games, lotsa cards
out there handle games just as good for a third
of the price.

8800 = gaming card
Quadro = indusrty 3D software card

hope this helps