...and all the horror stories on this forum has kept me from installing it on my mac [Late 08 UMBP]! Should I just keep it off for a while? I'm a heavy user of multi-clutch [actually all I use is 3 fingers up and down to switch tabs in Safari], and people here tell me that multi-clutch wont work, and if you run it in 32-bit mode, it has comparatively slower speeds. Basically I'm asking if there is anything I will gain by making the upgrade to SL? I can't so a Fresh-Install b/c I have too much research from my college classes on there. Any thoughts? Thanks!