This is awesome. My laptop can now actually play when the server fills up. And yes, Leshma has a point, giving framerates of over 20 to people used to fighting at 15-18 is a bit...wait, no, can't find the point.
My PC can run most maps on 1680x1050, full details, 2x AA, Movie WB with at least 25 fps at any time, most of the time over 60 except on some problematic maps.
I can't imagine what you go through with 20-25 fps, personally I wouldn't play at all if I had 15-18 fps on average.
My PC is old and worth around 150 euros tops. It has 4850 Radeon which I bought for 30 euros (2 years old).
Laptops with integrated Intel graphics aren't made for gaming, you can play Zynga games and Windows games but nothing else.
Edit: Also 150 euros in my country is 50% of average monthly salary. In your is probably 1/10 or 1/15 of your monthly salary. Don't be a cheapo, buy a proper PC.