I just got a Bubble Magus BMQQ nano skimmer last week. I've been cleaning it and put it on one of my tanks today. Not on my nano tank, because it required deeper water than my nano sump could provide. I'm impressed by the build quality...it's solid, especially since it's only $69 US including a MJ1200.
www.nuocean.com
Chris from there was very helpful. You would be looking at a larger unit but if they are built like this little one, then I suspect they will be okay. I'm going to have to wait about a week for this little guy to break in I suspect and then I'll let you know what I think.