Do you want to do serious gaming on it? If you just want to do simple ones that dont require alot then you could get a decent DELL. Look into DELL ones and compare specs and prices,
as for Compaq..
ive had probs with Compaq lappies before, but my fav is the V2000T series
Heres an OK DELL for your price range..
you could get that and upgrade the HDD and RAM..but if its not serious serious gaming you want, that could do you. Look at sony ones as well, they're not bad, not sure if there perfect for gaming mind you.