Can't remember if I've posted this anywhere before, but Megashopbot.com is the best price checker I've seen yet

Covers most of the stuff you'd be shopping for, and was set up by the Moneysavingexpert.com team:

http://www.megashopbot.com/

While I'm posting, I've noticed that some Amazon Marketplace sellers are now selling stuff effectively as 'The price you see is the price you pay', in other words, postage is included.

So if you see a second-hand book for talk's sake, don't automatically assume that you'll have to pay £2.75 postage

Hmm... I'm looking to buy a xerox phaser 6140 laser printer. It can't find any prices for that at all. That's a 150 quid desktop laser printer, hardly a specialist piece of kit.

It's working now, though it seems to be hit and miss, and I had to turn off Ad Block