I'm in a similar situation, I'm replacing a Macbook4,1. I don't want to deal with EFI/refit/GPT/etc anymore. As far as 13' laptops go the ASUS U36SD-A1 is the most attractive to me, but I think I'm going to end up getting a SAGER NP5165 because I can get more power for the same price. The HP Envy series also looks pretty good, if you can find them for a decent price.