May I suggest checking out :
http://www.traceystables.com/
I have seen these tables and really want one. They are custom built so you can really get what you want. They are not cheap, but oh so worth it.
One thing that I have noticed is that with a lot of cabinets you sit centered on the machine, not centered at the needle. This can cause lots of back/shoulder/neck problems.
Also, I don't want a "lift" mechanism in my table because I leave the machine set up permanently. So why pay for that part of it. Especially if it is a "hydrolic" or "electronic" or what ever lift. <G>
(I am not associated with Tracey's Tables, just really want one.<VBG>)
Have fun deciding.
Pati, in Phx