Help me choose a video card that will with WOW?

I'm pretty sure you can't replace a laptop's video card unless you send it back to manufacturer or are a professional computer technician. The video cards dell sells separately are for desktop computers. You can't put a desktop vid card in a laptop. If you want to play WoW on a laptop (my husband does) you will need to buy a machine designed for gaming. Dell sells some alienware laptops that are engineered for gaming. You may be able to find one cheaper somewhere... but in my experience, You're not going to find a decent Laptop to play WoW on for less than $1000.