Warhead suggested a thread on Ebay listings a day or so back, personally I think they come and go so frequently that it'd collapse under its' own weight, plus something which would be a bargain in the States wouldn't be so cost effective if it had to be shipped across the water anywhere. Perhaps an idiots guide where people can post their cock-ups so that hopefully others won't make the same mistakes or their triumphs which others might be able to imitate could be of more use
So, to start off - You get what you pay for,
10 pre-owned boyz, buy it now price £12, get two or more for reduced postage costs.
The twelve at the top are AoBR, the eight at the bottom are the boyz that come in the box set but without any extras. Postage came to £6 so 20 boyz for £30 - £36 would have got two boxes of orks containing parts for 22 boyz + 2 nobz as well as all the extra bitz and they wouldn't have already been caked in paint
So, before you get carried away, first make sure it's worth it