Make some kind of prize for people that register.

[Black Omnimon]

Something like "first 6 persons get their own board." Or something like that. When I had my forum, a "the first 4 to register became mods worked well"

[x3sphere]

Yeah, good idea. Will think of something...

I'm also going to start affiliating with other gaming sites very soon.. should bring in some more members :)