During the install process you can choose to customise the install. You can then deselect the apps you don't need.
WHen installing there is a 'customize' option you can access which allows you to choose exactly what you install. Just leave out iLife, garageband and its loops.
SHadoW
Actually, if you don't use very many opensource apps and don't do your own coding, you can probably dump X11. You can always add it later.
Correct. The only two 'major' apps that use X11 are OpenOffice.org (the open source Microsoft Office clone,) and GiMP (the open source Photoshop clone.) If you don't use either one of those, and you have to ask what X11 is, then you don't need it.
Basically, the way *ANY* Windowing operating system works is that there is a piece of software called the "window wanager" that is responsible for the actual drawing of stuff to the screen. For OS X, the "native" window wanager is called "Aqua". (I'm oversimplifying, by the way, for all you UNIX-heads.) In UNIX, the general window manager is X11. Essentially, since OS X is really based on a UNIX, it can use a true UNIX window manager, and allow "pure" UNIX applications to run with nearly no mofidications.
If you don't run UNIX programs, than you don't need X11. And, you can always re-install it easily enough if you feel like trying one.
Additionally, OpenOffice and Gimp both have Aqua native versions. They're under different names, though (I think the OpenOffice one is called "Office/J" or some such). Openoffice is, itself, alpha testing an aqua version right now...
Rather than reinstalling just drag GarageBand and the iLife apps from Applications to Trash, along with:
/Library/Application Support/GarageBand
/Library/Application Support/iDVD
/Library/Application Support/iMovie
/Library/Audio/Apple Loops/Apple
About 30 seconds to do that.
Edit: Add to that -
Library/Documentation/Applications/GarageBand
Library/Documentation/Applications/iDVD
Library/Documentation/Applications/iMovie
Library/Documentation/Applications/iPhoto
Add another 10 seconds to do that
sounds like a space saver! I haven't used garageband - but with the other stuff, what would you watch movies with?
The third-party Aqua-native versions are NeoOffice (for OpenOffice, it used to be called "NeoOffice/J", but decided that was silly,) and Seashore (for GIMP.) (I use both of them, and have the X11 'original' versions installed, too, just to be safe.)
My previous post had originally been typed up about twice as long as it ended up being, and mentioned both of those native Aqua ports; but my notebook battery died, and by the time I got it plugged back in, MacRumors had timed my login out, so I had to retype the post, and shortened it in the process.