Unfortunately, unlike desktop PCs, you can't just pop in a video card into a laptop. Whatever video card you've got, you're likely stuck with.
Though sometimes, very rarely, for about $200, you can get whatever top-of-the-line video card was offered at the time you purchased the computer. Even then it's a real pain to install it and you might mess up your computer for good.
i have a HP laptop and was wondering what would be the best type of graphics card to get w/ the price ranging from $100-$200.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic