Woot! another glaswegian! i'm no longer alone!
As for student lones, yeah, they charge interest, and it really does add up really quickly, and you *will* get a surprise when you get your final balance through from the loans agency. But as has been said, it doesnt get put on ur credit score, and you can take as long as you like to pay it off.
I'm more interested in paying off my overdraft than anything else right now tho :S