Installing Android Devloper Tools on Eclipse fails - Ubuntu Karmic 9.10

I followed these instructions to install the Eclipse Android Developer Plugins using Eclipse 3.5.1 and the default Ubuntu Karmic install. However I was presented with the following error message when clicking "Next":

Cannot complete the install because one or more required items could not be found.
Software being installed: Android Development Tools 0.9.5.v200911191123-20404 (com.android.ide.eclipse.adt.feature.group 0.9.5.v200911191123-20404)
Missing requirement: Android Development Tools 0.9.5.v200911191123-20404 (com.android.ide.eclipse.adt.feature.group 0.9.5.v200911191123-20404) requires 'org.eclipse.wst.xml.ui 0.0.0' but it could not be found

For some reason ubuntu doesn't include the standard update repository for Eclipse by default. To fix this:

• Go to "Help/Install New Software..."
• Add http://download.eclipse.org/releases/galileo/ to the update sites list (strange it's not installed by default on ubuntu)
• From there, install WST (use the filter box to find the package)
• Restart eclipse
• Go back to "Help/Install New Software..." and install the Android ADT as explained on the android website.

References: http://groups.google.com/group/android-developers/browse_thread/thread/c1f97d875e30f903/87cb75ef455d436f?#87cb75ef455d436f