What kind of things do supervisors look for when applying for a Post-doc? What things do I need to do before I finish my PhD studies? - I should get 2 publications out of this. Cheers.

Read through some ads for UK postdoc positions and see how you match up to the 'person specification' (often on the university HR website), this should give you some idea of what skills/techniques you need to develop. A reference from a big name also helps!

The technical skills you have learned will be important, as will good references from your supervisor. Publications can't hurt, but one good one is better than two average ones.