I personally would stay away from the 14" cast iron Delta clones, in my opinion they are extremely dated and in general lack the ability to tension wider blades.
That doesn't mean that if you find a used industrial machine such as a General, that you should avoid it as well. Different class of saw.
I would look for a welded steel saw, larger than 14" for a few reasons, one of which is clearance to the frame. You don't often need more rip capacity thah a 14" will provide, however once you start swinging pieces to cut curves, more wheel diameter becomes really handy.
For home I think 17 or 18" machines are often an optimum size.
I'm not in the band saw market, however I was impressed with the Hammer N4400 saw, atractive price, superb customer service, good quality machinery and it comes with a 3Kw motor.
http://www.feldergroupusa.com/us-us/..._utmk=92779293
The link above is the video for the Hammer N4400.
Regards, Rod.