Check dealerselectric.com . I have just purchased a 2 hp motor and controller
for $465.00 (net with shipping) for my Nova 3K. It was just ordered so I can't
really give much more information. If you contact them use the 800 number
rather than asking questions through e-mail.

Stuart Johnson

If the dimentions of the Nova 3000 are to you liking, but the problem
is in the ammount and contolability of the power, you might consider
repowering your lathe. Craft supply in Provo has a 1hp DC motor with a
vairiable speed controller available for right around $650. (p/n
186-0105) I have no idea what either the Powermatic or the Vega you are
looking at cost, but this is probobly cheaper.
They also have a 1 1/2 horse 220v setup for around $750.00 (p/n
186-1120) if you need more power.
I have the Nova 300 with the 1 1/2hp motor/controller combo referenced
above, and LOVE it. I rarely have to change the belt positions, I just
turn the dial on the controller, and plenty of power. I would think
that it would be a fairly straightforward operation to remove the motor
from your lathe, and replace it with the DC one. Then you hang the
controller off of your lathe stand or somewhere else convienient (mine
is attached to the front of the first shelf above the lathe, right at
shoulder height) and off you go. I did not have 220v available when I
moved into my current house, so with a few minor adjustments (as
directed to do in the manual) to the controller I was able to runthe
lathe on 110v. It has worked so well that I keep putting off the
wiring project to bring 220v to the lathe. I have not missed it.

Just something to think about.

Roman

PS I have no connection to Craft Supply other than being a very
satisfied customer.