CZ,
Yes you are right, I got my figures a bit wrong, I was just thinking off the top of my head, but when I went back and looked it actually works out around £350/month with the soopa doopa loan protection cover. (It's £100/month cheaper without any cover at all - just shows what they are making from this part alone !!)
My loan is going to be with Northern Rock for those who are interested. I believe they are offering the best APR at the moment and you can repay early too.
Not too worried about a flying job at the end, as I will be keeping my current job so will be able to afford the repayments until I get one - which obviously I hope will be quickly (but hopefully 12 years in the industry already and a few contacts here and there should help)
edit: The £450 was over 8 years not 10, so I'll probably take this option to get it paid off asap.