Just got here 06-10-2012 and liked the site. Threw a few thoughts out, so please forgive me the newbie thing.
Played D&D since 86 and GM since about 90-91. Experience with Basic, AD&D, 2e, 3e, Played only 4e. Also GMed Warhammer FRP, Runequest 3rd, Played Gamma world, Cyberpunk, Battletech & Mechwarrior, and Pathfinder. I've played more than that, but those are the ones off the top of my head.
I've learned everything I need to know that I don't know everything I need to know.