http://www.sysresccd.org/Main_Page
I love this. It's a live cd with all the tools you'd probably ever need. I use this to restore installs I kill experimenting. Especially fsarchiver on there.
http://www.fsarchiver.org/Main_Page
It supports ext4 as well as restoring to different file systems than the original, the cd has gparted for setting up partitions, etc, etc, etc. I wound up installing it to a small partition which I then use as a kind of system recovery partition.