So. I should have got a bigger drive when i got my mac.
Upshot, I’m about to void my warranty on my MBP and swap the hard drive for a new Samsung HM500J (500 of those gigabyte things) i bought from eBuyer (great next day service).
Ill be following one of the many guides there are for upgrading the mbp hard drive.
I have a time machine, and according to this page, transferring the system over should be easy.
Ill let you know tomorrow how it went… and what kind of performance drop i experience in going from 7200rpm to 5400rpm.
It’s a cheap holdover, until i can get a truly enormous 7200rpm drive (bigger than 500).