Used to be into it. Stable team, training sessions and voicechat, the whole package.
Learn the ropes in pubbie, then learn the channels/forums/places where private games are set and go there instead. It'll be hard at first because many people there are seasoned, but it's the place to really learn the game.
If you play in euro server, there used to be a channel to setup games, monitored by a clan with some ex-ONI in there (ONI and WARD where the top RoC DOTA clans).