And I'd just like to pimp http://www.choicesdirect.com to fellow Brits - similiar to Play.com with the free shipping, but also cheaper in places. The Angel season box sets are down to £35 each there which is the cheapest I've seen anywhere. I ordered one Monday night, got a confirmation email that it was shipped on Tuesday night, and it arrived this afternoon.
Very impressive. Particularly when the site originally said they wouldn't be able to send any out until Friday.
Oh, and they're also doing the first 4 Babylon 5 seasons at £17 each.