Thanks for the info so far.
Late,
I plan on using this bike as an all-rounder, i.e. for commuting (80km round trip), for recreational road rides of 2-3 hours, and hopefully for some off-road as well. I already have two sets of wheels, and most of the components I need. I've only been waiting on this frame to come along, and now, here it is!
I found this frame on the r.b.m newsgroup. I've seen numerous postings from this seller and nary a complaint about him, though your right, I should protect myself. Perhaps I should also ask him if he has an ebay presence.
Any further thoughts?