A very good unsecured loan deal at the moment is offered by Northern Rock. They offer loan rates of 6.5% for loans between £1,000 and £25,0000.
Unsecured loans can be taken out with a fixed interest rate for the whole period meaning that you know what the repayments will be over the course of the loan term. Unsecured loans are usually a little more expensive because the lender has less security.
As with all unsecured loans a credit check will be necessary before the bank agrees to the loan.