At 7 years old and 53K miles it should need a cambelt and fuel pump changing If not already done. (about £380to fix,do it before the VAT goes up though)
Also the obvious, look out for the usual damage/respray work, that all doors are straight.
Have also been told to look at things like condensation in rear light, though this is a pretty easy fix if it should occur.
I think they both sound like good models, with a nice spec, and at a decent price too.
Though after owning a black Mk3 before my current motor I would not own another black car, looks nice once washed, but turn your back and you feel like it needs doing again.