Oh yeah, that Tau ship is a good yard wide isn't it.
The largest (size and money) item that I have purchased from them is a Grey Knights Thunderhawk (the gunship one not the transport one). I looked online and they are going for about $800 now with shipping, this was a few years ago, and I don't think I paid more than $500 or $600, so their rates are going up.
I usually wait, and place one order a year from them for everything I want, since they are in the UK the shipping is through the roof (and there are really no dealers here in the US that have up to date inventory on it), so usually about a month before christmas they have some sweet deals on shipping to the US with discounts on products, etc.
Here is a link to the Thunderhawk TRANSPORT. I could see this getting customized into something for Joe... It has neat clamps under it that would probably hold some of the 2.5" Sigma vehicles pretty nicely...
http://www.forgeworld.co.uk/thawktranport.htm
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