First congratulations in joining, just look, point, read absorb.
Pay attention to the wiser members of the forum (the Mods, Dskize, Tom Allen, John C, Bob, Cook$, Skeet, Collier as well as many more.) and don't take anything too seriously. Be courteous when you post.
Secondly, from moving from the woods to Sup'Air, go along to a tournament, ask questions, play with markers, check out the KOTH, NSPL, UKM, PA tournament series, whichever is the closest to you.
PGi is your firend
Kit wise, the classifieds on here are the best place to pick up kit at good prices - especially markers.
Lastly, everyone is friendly, just ask nicely, jump in with teams training or if theyre looking for guests to play. Jump in - it cant hurt.
HTH
Paul