"gaming" and "laptop" do not really go together in the same sentence, I hate to say it. Your only hope is a high-end Dell (or alienware, now owned by Dell) or Sony Vaio. The main thing is the graphics card. Pay close attention to which card(s) are in the laptop you want. Believe it or not, my T60 I got a two and a half years ago came with a graphics card, a Radeon X1400, which turned out to be great since I can play Half-Life 2 and Team Fortress 2 with it (but not anything really high-end). Some cards are better than others, I guess I just got lucky that IBM chose a decent card for my laptop.