I love my PowerBook G4 667(DVI). I'll get rid of it when there is absolutely nothing for me to run in OS9.
TEG
I use my PB G4 667 (VGA) almost everyday and it still works great. I run Tiger on it and it's still plenty fast. The best thing is that it still looks like a brand new notebook. You look at a 7 year old windows machine and it looks like a piece of junk. They are really thick and heavy. This is only 1" thick, has a beautiful wear resistant titanium case, and weighs just over 5 pounds.
No regrets here.