mvaj92, are you comfortable with taking apart your macbook? I only ask because replacing the screen isn't impossible, but it's not all that easy either. It requires a lot of careful screw removing, then you have to pry things apart. If you can afford the extra $100-ish, $375 to get it repaired by macservice is probably best. The screens themselves go for $200-$250, but you have to do the install yourself. Plus macservice provides a 1-year warranty on the screen. Seems like a decent deal.
I bet you could get an estimate at the apple store, but I'd expect it to be $500+.