I have a Mac mini 1.5 Ghz G4, 1 GB RAM, which was purchased in January 2006 (my first Mac since an old Performa PPC running System 7). I have been extremely pleased with the system, and how well it has performed. However, it's beginning to feel a little sluggish in general (launching apps, quitting apps, searching iTunes, browsing in Safari, etc.), and I'm wondering if I should re-install Mac OS X, or if there are any "cleanup" alternatives to help restore my Mac's speed. Any and all help would be appreciated, and I apologize for my ignorance with this issue, as I've grown accustomed to reloading Windows every few months!