My Intel iMac should be shipped any day, so now I can do some more effective computer swapping. I'm gonna do some reformatting and reinstalling to clean out my computers, so what should I reinstall on each? I have Pather and Tiger Discs enough to go around. I have a 600MHz G3 iBook with 640MB of RAM. -- I mostly use this for Safari and iPhoto when I'm on the road. I don't need Widgets or Spotlight. Is there a speed increase with Tiger for normal use? I think I heard that Tiger's base install would take up most of my 15GB drive. I have a 400MHz G4 PowerBook with 1GB of RAM. -- This will be my backup computer. Storing my photos, docs, and music. I have 2x 300 Gig SATA drives making every safe. Is there a speed increase with Tiger for disk access or networking? Thanks in Advance.