Bear with me, folks, as I agonize over an enlarger purchase. Thought I wanted a Durst M670. Got interested in the Meopta Magnifax 4, but I'd have to order from overseas. Still, the Magnifax has some really unique features (see http://www.meopta.co.uk/magnifax4.html).
Locally, there is a mint (actually usused) Beseler 23CII (or maybe CIII) for $400.00. I have no experience with Beseler enlargers. It has a very tall column, which is nice, but seemed a little shaky when the head was cranked up high on the column. Rigidity is high on my list.