Buying a Laptop. :D

The i3 isn't as much a setback as Intel wants you to believe. The difference is like 5% or something between it and a Core i5 in real world applications, the GPU is far more important. In fact, most the time, the CPU will be at the minimum multiplier due to EIST anyways.

Here is the Core i5 450M, one of the most commonly found i5's
And this is the Core i3 350M, one of the most commonly found i3's and the one that is in the ASUS