I have a Danby unit that I bought from a guy in Canada
here. Reputable company, and good service. I like the unit fine, it works well for in home use. Downside is, the spill tray is just a plastic tray -- it doesn't run to a drain. So you can turn the tap on for a sec to let the foam dissipate before sticking your cup under (well, I guess you COULD but you'd be cleaning the tray a lot).
The really good ones are the Beverage-Air models, but these are upwards of $1,000.