QUOTE (Biggerx @ Dec 1 2007, 05:53 PM)

Appzapper! Sorry Groon, putting the programs in the trash doesn't delete system prefs & App support folders. Appzapper & or iClean will do this.
That's right, but although it's true that a few prefs, etc. might be left behind, they won't have any effect on your system or other apps like they would in Windows. There's no registry to worry about and no "Master File" to get screwed up if a scrap gets left behind.
So, if you want to clean up your computer, as per your original post, drag what you don't want to the trash and empty it. If you're really concerned about getting rid of every last scrap (to save space, because anything left behind won't affect the operation of your computer) then get a third-party program.
EDIT: Some apps that need a lot of support files, like Adobe, for example, include an uninstaller. Check the original installer and see if it also has an uninstallerI still have some prefs left over from programs I trashed years ago, but so what? Some people have to have everything completely accounted for, but I really don't care, just like the possibility of a penny lost behind a sofa cusion doesn't bother me.
In Windows, you just can't drag apps to the trash and delete them. In Mac, you can. That's the difference. If you want to do a little further housecleaning, that's up to you, but if not, the dust will stay under the rug and neither you, nor anyone else, will ever see it.
Of course, some people have to make sure all of therir pencils, pens, notepads, etc. are lined up to the millimeter before they feel comfortable. I'm not one of those, but you might be.
The whole point of this post is, it's quite OK to drag an app to the trash and get on with your life, if you see fit to do it that way. There's no NEED for a third-party app. unless you're really concerned about it.