I think that Spotlight is an impressive bit of work. On my 800MHz machine, it gives me the complete results of the database in 1-3 seconds. My only complaints are that it appears not to index certain file proprietary file types (I use omni outliner a lot and none of that is indexed) and that you can’t do file and directory manipulation directly from a Spotlight search. (Say for example you want rid of everything involving your ex. Wouldn’t it be nice to give that name over to the machine, select all and delete?) Still, as someone who keeps files carefully organized in diretories, it is nice not to have to go three or four double-clicks deep when I know exactly what I want.