The stock CPU fan is designed to properly cool the CPU when not overclocked. Although your temps may run high, they should not get too high to cause damage.
I would suggest putting at least 1 more fan in the case so you at least have airflow, instead of just exhaust.
From my experience with Pro Tools (I dunno if you are using it or not) the only time you will even start to strain the CPU is if you are using a bunch of samplers. If you are having a problem with your CPU overheating, write your samples to a track, and disable the sampler.