this is my experience
compiling paraview 3 beta on powerPC mac os X tiger

	cmake
	cmake available as a download from kitware
		/usr/bin/cmake
		cmake version 2.4-patch 6
		[DMG]

	gcc
	gcc 4.0 from apple, with Xcode 2.4.1
		/usr/bin/gcc
		powerpc-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 (Apple Computer, Inc. build 5367)
		[DMG]

	qt
	qt from trolltech
		qt-mac-opensource-4.2.3.dmg
		[DMG]
		alternative: qt-mac-opensource-src-4.2.3.tar.gz
		[TAR.GZ]

	python
	python from python.org
		/Library/Frameworks/Python.framework/Versions/Current/bin/python
		Python 2.5.1
		[DMG]
		others: /Library/Frameworks/Python.framework/Versions/2.4/bin/python
		Python 2.4.4
		/sw/bin/python
		Python 2.4.2
		alternative: /usr/bin/python
		Python 2.3.5

	paraview
	[info]
		> cvs -d :pserver:anonymous@paraview.org:/cvsroot/ParaView3 login
		CVS password: paraview
		> cvs -d :pserver:anonymous@paraview.org:/cvsroot/ParaView3 co -r ParaView-3-0 ParaView3