I know this isn't going to help with your "what have you ACTUALLY done" request, but just thought I'd let you know my plans. . .
I have a brand new 28x34 pour happening this spring. After a TON of reading on here and other places, looking for the same results you have been looking for, and not wanting the look of tile (although I still think this is one of the best options), I have decided I'm going to use Legacy's sealer/clear coat combo. There hasn't been a ton of long term reports, but from all that I've read (I'm super **** about research) it seems like it will do exactly what I'm looking for. (which seems to be pretty much what you're looking for)
I was just on Legacy's site and they even have it packaged now. . .
So, that would be 2 coats of the HD015CLR (Standard Epoxy Clear Sealer) followed by HD356VOC (Urethane Clear Coat) with HDTABALUM-1pint (Soft Skid, Anti-skid Additive) added in for traction. I am still out on whether or not I'm going to dye the floor first with their Concrete Acid Stain. flybefree's shop just looks so good with the color on the floor that I'm tempted to go with a little color before I seal it all up.
The only thing I'm not 100% clear on is what the purpose of using the epoxy first is as opposed to just using the urethane sealer. I assume that if you do wear through the sealer, the epoxy will end up as the exposed layer, rather than the raw concrete.
Either way, based on Legacy's site, I can have my floor done for around $1000 and about $250 less if I forgo the stain. That's for 850 sq.ft. (that's how much of my floor will be exposed)
Just thought I'd share what I've decided on. Hope it helps a bit. If you want to wait another 5 years on your decision, I'll give you a good review on how it worked out for me. . .