New Team game, new(ish) players prefered

[Niarg]

I've just received my copy of Dominions and I'm looking to start playing online. Started to play a couple of single player games so I'm not completely clueless but close to it.

I have a preference for the unmodded game and teams of 3 rather than 2, preferably have one slightly experienced person on each team so that they can guide us complete newbies. I'd also really rather not have a random team or race.

Finally if anyone can explain the basic format of online games (how long will we have to complete turns etc) I'd be grateful.