If you have the space for a 4x5 or 5x7 enlarger, you might as well look for one as, with a little luck, it won't cost more than a small 35mm machine. I paid $25 for an 5x7 Omega E6, Omega Light set-up, including a couple of lenses, what seems like a full set of carriers from 35mm up, filter turret, spare lens boards, timer, etc. It doesn't take any more space on the bench than a 23cII and is not nearly as likely to be put out-of-kilter as the Beseler, which I also have, my second in fact.
If space might be a problem for awhile, I like my Durst M600 because it works well for small to medium sized prints on it's baseboard; larger if projected onto the floor, ie. It breaks down quickly into three sections for easy storage/set-up and will do the 6x6 stuff nicely. Parts are plentiful and I think it's a very well made design that'll work well in small digs such as a half-bath, closet or washer/dryer space.
Even if you want a larger tool, a small enlarger like this could serve until you find a good deal on that 'lifetime' machine and still have a useful after-life as a dedicated contact/small print enlarger, a copy stand or with some imagination, a suitcase darkroom set-up.
Unless a really great deal pops up, bide your time taking a discussion on which machine to buy and keep in mind that capacity to spare is a good thing. Keeping a watch on the postings here for what the experienced printmakers are using and why, might just be your best guide to what to look for.
Eli