Anyone used USB Video adapter with Mac Mini?

I've been using dual monitors for years now, and one thing I noticed with the Mac Mini I'm getting is that it only supports a single monitor. I can use a single monitor setup, but it's sub-optimal.

So, in the interest of getting a second monitor up and going on the Mini, has anyone any experience with the various USB video adapters out there?

Thanks in advance.

It's the one I described in the other thread: first gen Intel, so it only has a single DVI port.

It's a little long in the tooth, but it runs Snow Leopard and all it's costing me is to write fourteen auto-responder emails over the next eighteen months, so I really don't want to complain.