Replying to GH2 + Lens + ???(Accesories)

Ayo guys, so as you can see, I have set my sets on the ever so beautiful GH2.

I have finally decided that I am going to start by purchasing the body and Panny 14-45 over the 14-42. It's a higher build quality and has a sharper image. So at this point I'm at about $923.00, but I have another 480-580 to spend on a possible additional lense, I'm thinking a wide angle like the Rokinon or something along those lines. I also put some thought into getting a mic and a new tripod head like the 501/701.

Just looking on some guidance over what you think is the best course of action at this point.