How odd. Whatever path I took yesterday on their site led me straight into the hosted solutions, with no evidence that there was any other alternative. And now I can't re-create that pathway.

But anyway: I could probably swing $1200, but I don't love the match in terms of the license scheme. In particular, my intent is to open the thing up to members of the community, and I have no idea how many people that's going to be. Confluence looks to be designed more for in-house enterprise use, but that isn't exactly what I'm doing.

So I'll probably go with the freeware (having come across XWiki, which is probably a better match for my needs anyway). But thanks for the pointer...