I just bought a "new" (for me!) 1 GHz TiBook this month, and yes, it screams in OS 9. It will only run a later version of 9.2.2. And as for speed of indexing files, it is not too bad - it is not like I rebuild my desktop file all that often in regular use! This is basically the fastest stock OS 9 laptop that there is. Replacing the original hard drive made a huge difference, file transfers are now much faster, and the thing is now nearly silent when it runs. I don't remember the specs but its a 160 GB Seagate. So far it is even more responsive than my dual 1.42GHz G4 which is technically faster, with respect to pure number crunching. It has lived up to the hype and I absolutely love it. I am going to buy a few more TiBook DVIs for spares and parts when I can, so that I always have one!