Just in case you are not aware, Comet have a good auction clearance website. I bought my Sony Vaio about 12 months ago from here for £500 less than the cheapest price anywhere!
They sell off all their returned, shop soiled, & sliightly damaged/scratched goods here. Any faults are clearly mentioned.
For instance a built in cooker that only has a tiny mark down the side (that you would not see anyway)
All goods come with full warranty, so if you are kitting your house/kitchen out this could bag you a good deal. Not sure if you can use vouchers Etc.
Most items start at a pound!