We bought one of these beasties today: eBay Link
We went for a demo first at Signzworld. I wanted to see one in action before shelling out a grand. I was very impressed. It does need a compressor of around 24L so not a huge one.
If you do large volumes like we do, this has been the first viable solution I've seen. The Coralgraph5 was absolute rubbish, but hey it was cheap!
We got it back to the office and got it set up in a few minutes. It helps if you have used compressors before. So far, pretty excellent. I will of course update as we go on.
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