I have the same laptop as you. Which version of Ubuntu are you finally running?
My problem is that as one of the members pointed out, the hardware seems to be working better only with 12.10, but that too is a little buggy.
The trackpad for example, with 12.04, it's just unusable, with 12.10 it's just barely usable. I wonder if this problem will ever be fixed.
What's your experience with running Ubuntu on this laptop.