The argos clearance website is not bad if -
a/ you have a load of spare cash to buy a whole pallet fo iPods, LCD tv's or exercise kit, and
b/ only buy grade A overstocks.These are as new unsold items.
Grade B&C tend to be customer returns and faulty items.
I've heard too many bad stories about people buying pallets off ebay. When the pallets are sold bty Argos and Woolworths, they are all similar stock. A lot of the resellers will split a number of B grade pallets, cherry-picking the best items, and resell the tat as a mixed-goods pallet on eBay.
There are a lot of reputable companies out there selling genuine pallets of stock, such as
http://www.xcatreturns.com/stock.htm, and
www.********.co.uk