I haven't posted an url because linking to ebay from BPL is frowned upon. Just do a search for ULA catalyst and you should find it.
Just checked and someone has put a bid on it. Hopefully someone from BPL! Still only $50, and the original 'buy it now' price was $110 so I should imagine it will go for less than that.
Anyway, I hope one of you guys gets it for a good price.