These are the exact things i did to increase os x's speed a lot. First I removed all the extra menu bar thingies, like the ichat menu and the displays menu,these slowed the login procudure alot. Secondly I put all my files into folders that were on the desktop, this helped increase speed by having to load less files. The thirdly I took many of the extra Icons off the dock. All of this with a repair permissions and updated prebindings increased it alot for my beige g3 500 mhz. With the dock I also turned off animated app openings. The biggest thing was I put on the Dark Glass (version 1) theme via Theme Changer. Even though menus and junk are all transparent I noticed a huge huge HUGE speed increase over the aqua gui. I just thought this would help anyone with an older computer out. just my 5 cents Ever since I did all of this os x uses less ram as well. Before On average I would have around 170 megs available, but after all this I have around 200 megs. This is a big difference because I only use 352 megs of ram. Also, regular non admit accounts generally run faster, but its not that big of a difference.