Thinking of moving to the UK

How much should I expect to spend for a good used car over there? Over here you cant spend under $5000 and expect something good. So whats the average cost in the uk for a good reliable used car?

Should I get a Vauxhall, fiat, volvo...?

>>15
That or get a penny-farthing http://en.wikipedia.org/wiki/Penny-farthing