Hey ya'll! I just got a free iBook G4 for helping a friend migrate data from it to her MacBook, then connecting her BlackBerry to her MacBook!

Specs:

• 1.07GHz G4 w/12" Screen
  
• 256 MB RAM (I upgraded it to 512)
  
• 40GB HD
  
• Combo Drive
  
• Airport Extreme

I then:

• Reformatted with 10.5.8
  
• Disabled Dock Transparency (greatly improves performance it seems)
  
• Disabled Spotlight on everything except Applications (I like to launch Apps with Spotlight)
  
• Installed Opera 10 and use Turbo Mode (renders on their servers)

I was surfing with 8 tabs open, while chatting with 4 people on iChat, with Preview and Grab open and didn't notice any major slowdowns! Performance actually seemed better than under 10.3.9...