Hi,
If you want to buy new, depending on your budget and the size of workpieces you want to use, you could in my opinion do a lot worse than a
Vicmarc. I have one of their lathes and it is an excellent machine. In my experience Phil Irons, their UK dealer, has been very helpful and the one spare part I have needed (a speed control potentiometer - since I foolishly lent a board against the lathe which then toppled and struck the knob, breaking the shaft of the old one) arrived very promptly after I ordered it, with an offer of phoning to talk me through fitting it if required. (I'm not affiliated with Phil or Vicamrc in any way other than as a customer). You can find prices on Phil Irons' website, the top of the range VL300 offers a 600mm diameter over the bed and comes in around £3000 depending on configuration; smaller machines are also available and are somewhat cheaper.
I read a very favourable review of a
Silverdrive lathe on this site some time back. They were not around when I bought the Vicmarc (although I now understand that the larger Poolewoods of the era were actually made by them). The direct drive design has good and bad aspects to it. I personally appreciate the additional torque that can be achieved through a multi-step belt system but haven't actually used a direct drive machine to give any comparative opinions. Some of them claim to have excellent low-speed torque despite the lack of a belt drive. I also believe - hopefully I'll be corrected if I'm in error - that the headstock spindle is not hollow on those machines, which may make ejecting centres more difficult. I think their pricing is roughly comparable to Vicmarc's.
Slightly cheaper (~£1600), and very popular in America at least, is the Nova DVR XP. These are direct drive machines with swivelling headstock, and are available through Stiles and Bates. I think Robert Sorby actually import the units from the manufacturer in New Zealand.
One drawback of these direct drive machines is that they use (I believe) a custom motor which is part of the lathe spindle. Should the motor or drive electronics fail, the whole machine may be useless unless/until you can repair it or obtain a spare. In most cases with belt driven machines, the motor is of a standard frame size and thus more easily replaced if necessary.
I often find myself advising people to also consider second hand, older but well treated machines. You could get a similar machine for much lower outlay that way, but modern features like variable speed are often only possible as retrofit on older machines. Something like a Wadkin RS, Wadkin-Bursgreen BZL, or a
Harrison/Union Graduate (also see
http://www.woodturninglathes.co.uk/index.html) would be a sturdy second hand choice, so long as it's in good condition and complete. Chucks etc shouldn't be a problem on older machines, just be sure the spindle thread is still supported by the chuck makers - most threads used on the bigger machines seem to be. You may however run into problems if you need replacement castings, which if available, can be very costly. If it's complete when you buy, though, and the transportation is carefully done, this should not be a problem in practice.
I'd also say, before spending the money, try to have a go on several models and see which you get on with best. Shows and/or local dealers and/or local woodturning clubs could well help out on this front.
Other machines possibly worth consideration are the Jet/Axminster 1642, the Axminster Plus models, the Omega Stubby, and the OneWay lathes. They're roughly in price order, starting around £1300 and going up to nearly £4500. I personally have no experience of them but other forum members may well do. If not, it may be worth checking out
http://groups.google.com for other peoples' opinions.
Cheers,
Neil