1. You could also replace the 120mm fans with ones that move more air. 2x 120mm Evercool Aluminum at 7V using a Fanbus controller may help.
2. Getting a thermalright SLK 9xx series HS and 92mm panaflo Medium would help your CPU
I havent used Zalman's cpu heatsink, but have heard it performs well.
3. I have the Superlanboy case and in front of the 120mm fan in the front, there was a grating with circle holes cut in. It restricted air flow quite a bit. I took a pair of diag wire cutters, and cliped them off (took a bit of effort) and used a dremel to sand down the sharp edges. Air flow was helped quite a bit.
4. I just removed the entire HDD cage in the front (mine was the perpendicularly facing one) by drilling out all 8 rivots, and taking out the 2 screws. Air flow is much better now. For my HDDs, i bought a Zalman passive HDD cooler for my cooler running drive, and I suspended my Raptor in front of the 120mm fan in the front using bungee cord material.
Number 3 and 4 took me 3 weeks of planning/trying/ripping out stuff/not being happy and starting over.
Good luck!