I used the red sea prizm HOB for about 3 years on my 75 mixed reef/small fish tank. I had no problems with dozens of corals and several fish, but I did waterchanges once or twice a week.
It is about $100 at Marine Depot. They also sell a add on now that lets you actually skim from the top of your water instead of from a few inches below. It is about $30. I've never bought the attachement as it wasn't available when I bought mine, but I would get it for that price.
I tried a Jebo once, and no matter how low or high the air was it would come pouring over eventually. Not sure if it was just mine, but I wasn't happy with it. Just my $.02