I agree it looks like fun. I've always wanted to try it as well and did a little research on it while back. There are lots of organizations that go out and do it in groups and I think that would be a great way to learn the craft.
Ontario Prospectors Association
Lots of great videos on Youtube. It seemed to me that most people seem to be setting up sluices of one type or another.
I'll be curious to hear how it goes for you.
How far north do you go? I've done some fly-ins in the Red Lake area.