Hmm not a massive fan of ebay, shame I can't find a UK seller..
I like the look of this one:
http://cgi.ebay.co.uk/053-PARNIS-43...nsWatches_GL&hash=item3a64aac131#ht_831wt_905
Im guessing the bottom bit is moving and stuff? Very tempted...
The Tourbillon bit will be not functional or do something that is not a Tourbillon function, I would avoid any watch that pretends to be something that it isn't