D-20 currently has a few spots open for active players. There is no real skill requirement -- as long as you can use Angel and Pimp we can teach you. The only open spots at the moment are for HA/Cleric intel-gatherering A/Ts, so keep that in mind.
D-20 started Age 50 as a complete ghetto, with around 5 active players (people returning to the game after a long absence seem to be most of our members, even now). We've since grown to 20+ hyper-active players, with a 4-1-1 war record and several spots in the rankings (consistently top 10%, in fact). We're actually supposed to be the subject of an upcoming news article.
If you're interested, send me a PM or reply to this post. I'd prefer to have a little conversation with you in IRC (I'll give you a channel), if possible. :)