Just a quick reminder to myself as I always end up Googling for this. The update sites for CollabNet for Eclipse are:
Current Release (1.5.1):
Eclipse 3.2: http://downloads.open.collab.net/eclipse/update-site/e3.2
Current Release (1.8.1):
Eclipse 3.3: http://downloads.open.collab.net/eclipse/update-site/e3.3
Eclipse 3.4: http://downloads.open.collab.net/eclipse/update-site/e3.4
Development Builds:
Eclipse 3.2: http://downloads.open.collab.net/eclipse/dev-builds/e3.2
Eclipse 3.3: http://downloads.open.collab.net/eclipse/dev-builds/e3.3
Eclipse 3.4: http://downloads.open.collab.net/eclipse/dev-builds/e3.4
These are sourced from: http://desktop-eclipse.open.collab.net/servlets/ProjectProcess?pageID=3794