Yea, I would like to uninstall dev tools as well, maybe there is a file list of whats installed? I don't know if it's always been there, but I saw a developer folder either under users or at the root, is that it?

Here's how you install (most) of the Developer tools (including 200 MB of 'Documentation')

The GUI way (for the faint of heart):
Log in as the user you used in the installer. (I don't know if this will actually work). Go to Computer. Go into your OS X HD. Take Developer. Drag to trash. Empty trash.

The Terminal way:
type the following into a terminal window:
sudo rm -r /Developer
It will ask you for a password. Type in your password. DON'T PANIC if you can't see it as you type - that's supposed to happen. That's the closest the Terminal can come to giving you bullets.

Now it does throw some other stuff into /usr/local/bin and probably /usr/bin, but I don't know exactly what it installs. In any case, this stuff will never bother you, unless you really really really need a few extra megs of disk space.