My MBP came with 1 gig RAM and 120 GB/5400 RPM HDD. I upgraded it soon after Christmas to 2 gig RAM and 640 GB/7200 RPM HDD. I used CCC to copy my original HD onto the new one. Once my computer booted successfully with the new HDD I ran every clean-up utility in Onyx. All these efforts sped my boot time from about 90 seconds to just over 30. Apps were loading faster and everything was perfect. Now, in the last month or so boot time has once again slowed, only now it's slower than before the upgrades (about 2 minutes now). In addition to that I'm now aware that my fans pretty much stay at 5900-6000 RPM once I pass about 10 minutes of use. It's possible the fans were this fast before the upgrade and I just wasn't aware of it. I have reset NVRAM/PRAM with no noticable improvements. FWIW, I'm 99% sure I'm running 10.6.6 since I had to upgrade the OS when I got an iPhone 4(I'm at work now, so I can't check). Any help would be greatly appreciated. TIA!