I have a "three-man" (i.e. fits two people who get on fairly well with each other) tent that I was literally just about to advertise on the giveaway newsgroup here... you may have seen it sitting around in the spare room a couple of days ago. 8-)

It's an undistinguished army-green colour, and a bit grubby in places, but should be clean-up-able (the grubbiness is authentic dried mud from Glastonbury!) and to the best of my knowledge it's all still intact (and it's not too difficult to put up). Give me a shout if you want it (should be able to get it to you somehow before the beginning of August).