I'm a little leery about using the full system because I'm not experienced in running it (I have other DM experience, but not GURPS), the combat parts look a little involved and I'm not sure any players I might have would have prior GURPS experience. That's a bit of a bad combination, and in my experience combat tends to go even slower online.

I was thinking about maybe converting to one of the systems my gaming group likes for one-shots. They tend to pick simple, very easily learned systems that may not have fully realistic combat but are fun to play and, critically, allow and encourage wild improvisation.

Possibly even go systemless. You don't really -need- dice to roleplay, and if someone's coming from the kind of RPs that are generally found on livejournal it could even be a turnoff. If a group comes together that's tentatively interested, we can talk about that sort of thing further.