Eeer.... the i7-620M in the MBP isn't much slower than the i7-720QM in the ASUS. In fact it's faster in most benchmarks and just slightly behind in multicore rendering.The mbp doesn't have 4 cores so it's going to be too slow and costs way more. I was hoping it would have the i7 quadcore but I guess apple is always behind.
But on the other hand the MBP achieves a much longer battery life, which is important for many people, and so are things like noise and heat.
Anyway, for the stuff you're planning to do, the ASUS seems to be the better option: Go for it.