if you decide to go AMD, you could get a mobile Athlon XP 2500+
instead for $10 more.
they are designed to use less power, and create less heat. that means they can also overclock more.
most of the XP-M's can get around 2.5GHZ or more on stock cooling.
if you don't know how to overclock, you can go here
it's up to you whether to overclock though. I can say that it most likely won't kill your CPU (about a 99.99999999999% chance that it won't) unless you actually take the heatsink off (not many people are that stupid though)