I saw "Central PA" and immediately am thinking YES! You're right about there not being many Pennsylvania cosplayers, especially in my area. I'm also planning on going to Zenkaikon, but I'd love to go to Otakon. Zenkaikon's going to be my first convention, so I'm definitely excited for it.
I don't have many cosplays yet, but the number is starting to increase. As of right now I cosplay Xion from Kingdom Hearts, Hungary from Hetalia, and I'm planning Grell Sutcliff from Black Butler. I've never been in a group before, but I'm open to just meeting new people in general.