Have to agree, you should consider this lathe as well. I have turned on the Laguna 2436 (same as Grizzly GO800) for the past 2 1/2 years and am totally satisfied. This lathe includes a great tailstock swing away and weighs in over 800LBS. Leg stance is much wider than the 766 and offers much better stability. This lathe is totally rock solid. With three horse power It is very rare that I ever change belt speeds.
I know this is the upper limit of your budget, but could be your last lathe.