The APO lenses are considered by many the best "price is no object" choice. If you get a copy of Post Exposure by Ctein there is an extensive comparison test of enlarging lenses. As stated, Beseler, Durst, Omega, LPL, not to mention DeVere are all excellent enlargers. Each has their good and bad points, but for any of them, assuming they are in good repair, a bad print won't be the enlarger's fault.
There is endless debate on diffusion vs condensor, vs point source light, Ctein (in Post Exposure) has the best objective description of the differences that I've seen. The bottom line is that you can make good prints with any light source, and the differences are mostly a matter of taste.
Shop in Craigs list, or on ebay for "pick up only" units that are within what you consider easy driving distance. I bought my LPL 4500 that way and paid a fraction of the typical ebay price, and I was the only bidder.
I second the recommendation of a Gralab for timing processing, though an ordinary clock with a second hand works fine too. For the enlarger, I think I'd recommend either something very simple like a time-o-lite, or very fancy like the RH Designs or a Darkroom inovations f-stop timer. The middle-of-the-road digital timers are sort of the worst of both worlds, IMHO, though that's what I currently use.