and if you have a notebook, i would not be without
smcfancontrol http://www.versiontracker.com/dyn/moreinfo/macosx/31029
which lets you monitor your fan speed and computer temp in your menu bar, and let's you limit your fans
and Insomnia X http://www.versiontracker.com/dyn/moreinfo/macosx/30315
allows you to shut the macbook computer without it going into sleep. there are many forums which say this can wreck your screen or overheat your computer. but i have had it running closed for days at a time (using an external monitor) and have had NO problems so far.
Shop for your Apple, Mac, iPhone and other computer products on Amazon.
We are a participant in the Amazon Services LLC Associates Program, an affiliate program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.