Thanks! I like it too.

Mine also uses a 27.0mm seat tube, but I didn't have any trouble finding one - it's actually one of the few parts on that bike that were purchased new. I think I paid $6.99 for some no-name alloy jobber at my LBS. 27.0 is a fairly common size for both Italian road bikes and mtbs, so you shouldn't have much trouble hunting something down. My frame came with a Nitto Jag seatpost and Kashimax saddle, but I had no intention of using the saddle and the 33mm rail width on the jag made it pretty much useless for any other saddle. A BB should be equally easy to find - there are plenty of budget options that will give a close-enough axle length.