I have an early 2008 MBP running on 10.7.2, and it's running extremely slow especially in the past few days. Last night it got worst. I would get a beach ball every minute, and the computer freezes for about 10 seconds. When that happens, my music would pause, and nothing works during that 10 seconds. Then the cycle repeats itself (beach ball every minute, and freezes for about 10 seconds). I only have Safari, iTunes, and Aperture opened (wasn't doing any post processing, just looking at pictures). I've rebooted the computer, repaired disk permission, ran OnyX, and repaired the startup disk. I don't know what else I can do. I reinstalled Lion just a few months ago because Aperture was running extremely slow. I looked at the Activity Monitor, it looks like iTunes uses more than 100% of the CPU at times, and mdworker also uses a great deal of CPU power from time to time. Quitting and relaunching iTunes didn't resolve the CPU issue. iTunes Match wasn't running when this happens. Do you know what's causing this, and how I I can fix it? Is it really time time to get a new computer?