Ok, I've read hundreds of messages on VFD drives and am trying to
decide upon a unit. I'm a bit confused about the relative merits of
the different models being advertised and was hoping somebody 'in the
know' could help.

what's the diff? Why the big price differentials? I don't see whether
some are vector drives or not. the information is pretty spartan.

All are 3HP, 220V 3-phase output
TECO FM100-203-N1, $295
TECO FM50-203-N4, $407
TECO FM50-203-C, $245
Hitachi L100-022NFU, $300
LG PS-C21030, $309
Hitachi SJ100-022NFU, $385 (sensorless vector control)

Any thoughts would be appreciated. I'm looking at driving a Mill and a
Lathe off of it, not at the same time. Very different load types,
minimal heavy work will be done.