Only Erased a certain partition which only holds OS X. I had a file that refused to be deleted in Panther, i figured I was wiping the drive soon, no big deal, but to my surprise that file was still in the trash after i did the clean install. I kinda wish i used a 3rd party app to wipe the drive.
But Tiger is much faster on this slow/old Mac. Safari is great, quicktime seems to never drop frame rates, a constant 30fps, even while you do all types of stuff over the movie. All my old apps work, well all that i have opened so far. Dash board needs to update BEFORE I pull it up, it's a pain to see it update after, I know it needs to take up none of the processor, but to run every now and then won't hurt. ITunes doesn't eat a ton of CPU, Safari doesn't eat a ton of CPU anymore, it stays a very low amount. Font book runs great, I just wish we could have the fonts we add organized by the folders we create in font book.