You are going to find a tough time attempting to obtain a LCD good for gaming, while keeping it under 250, especially if you are looking at those stores.
If you are willing to up your budget about 80 bucks, this would be alright for your needs, of course its online so it is cheaper, but shipping will probably be heavy. 19inches and 16ms response time (what you want in an LCD)
http://www.newegg.com/app/ViewProduc...211-003&depa=1
You wont need to up your budget for this one, but it is online. Less than 250 still, this will work very nicely, but its 17inch (its alright). Still speedy response and shipping still keeps you under budget.
http://www.newegg.com/app/ViewProduc...103-204&depa=1
And finally, not a bad buy here either. The limited best buy inventory offers only one decent solution, but it is 280. 14ms response time an 17inches will do you alright, dont know the brand though.
http://www.bestbuy.com/site/olspage....0&type=product