Disposal Auctions

Anyone ever been to one of these?

There was an advert in the back of this weeks ITWeek that sparked my interest.

The auction had a fair bit of reasonable kit that a home user might be interested in such as moderately specced desktops and laptops P3 900MHz - P4 1.6GHz. nothing exciting but stuff that would make a good second PC or a home server.
Even laser printers and good office desks would be good buys but...

How much does this stuff go for (UK£)?

The closest auction houses to me would be a couple of hours drive and I wouldn't want to go if the prices were silly but if there were bargains to be had it might be worth it.