The week before last I spent probably $50+ on minifig purchases... This week I spent another $40+ on pieces. I am getting a lot of nifty pieces to use towards this REB/COG collaboration though. There are so many ideas going through my mind and I am actually MOCing. To name a few of the pieces I've purchased in bulk:

Lightsaber Blade

Arm Mechanical Exo-Force / Bionicle

Bar 1L with Clip Mechanical Claw

Technic Ball Joint L

ight Bluish Gray Pneumatic T Piece New Style (T Bar)

Things I Have To Do:

Buy Pieces

Build Stuff

Buy Hero Factory 2.0

Pay for BrickFair