I came across this new piece of equipment in Cathe Friedrich's blog for her new strength training series.
Cathe Friedrich Blog - you will need to scroll down from the top of the blog to the part entitled "Introducing the STS Strength Bar/Pull-Up Tower". I don't think it's on sale yet but I think it would be a useful piece of equipment when it is. Unfortunately I doubt I will be able to get it to the UK without extortionate shipping

, but I thought those in the US might be interested.