Just as a suggestion, you might want to enter the BIOS and set the value to "High Performance Mode" to "OFF." That feature basically overclocks the processor a bit, so you might run a little cooler with it off. I have mine turned off due to using the notebook in the office and for presentations, but have noticed little (if any) performance difference in playing WoW with it off. Of course, that's not the most graphically demanding game...so YMMV.
The airflow design of the m3200 (and 223) is not the most impressive feature of the notebook. You might want to try a notebook stand that simply lifts the notebook off of the desktop surface a bit. I think 3M makes a foldable stand that is like $6. I've been trying to track one down from a reputable dealer myself. That would bring it up off of the surface and allow the fan intake to gather more airflow. Nexus also makes a fanless heatpipe notebook cooler, the TDD-3000.
If you do get a traditional cooler, be careful. Because the m3200 fan pulls air from the underside of the notebook...adding a traditional cooler may end up being counterproductive. Most notebook coolers pull air away from the underside of the notebook which may asphyxiate the intake. I could be completely erroneous in saying that, however, as I'm no expert in fluid dynamics.
Best of luck!