I got my new mbp about 3 wks ago, perfect no problems. First Week I was averaging 50-55 degrees websurfing, downloading, movies. Just last night I noticed I'm getting 65-75 (at one point 80) degrees doing the same thing. Since the first week, I've added a bunch of utility apps: 1. Quicksilver 2. Default Folder X 3. Smart Scroll 4. Lazy Mouse 5. MultiClutch 6. Growl 7. iStat Menu 8. Magnifique (Theme changer) Would these types of apps cause my MBP to run hotter?