Three times yes. Booting Leopard as well as Snow Leopard is possible because of the nice chameleon feature to have different folders with different kexts for different system versions.
Is your Win and Linux also working? Are you able to boot Leopard from internal disk with the new Chameleon from external disk?
And advice - it would be good to have some USB key with Chameleon installed on it that would be your rescue boot option if something goes wrong again.
I will copy the content of the boot partition (I created a separate partition just for the bootloader) of the eSATA hd to the boot partition of the internal hd, install chameleon on it and unplug the internal hd. That should be more safe than the bank of suisse.
The lesson of this for me is that I wouldn't recommend the opensuse dvd for hybrid gpt/MBR disks. The installer promised not to touch the MBR but it did - maybe because hybrid gpt/MBR is pretty special.
blackosx, now I remember an article about what happens when a computer boots that I once read. As much as I remember it performs a selftest and then accesses a certain sector on the hd where it expects code to execute. If it doesn't find anything - game over. In my case one part of this code was obviously missing.
Both of my hds boot with chameleon. On the external hd I first installed windows, then chameleon, then linux with grub on the linux root partition. On the internal hd I started with chameleon 1 as much as I remember, then updated the boot-file, used asere bln's booter for some time, then installed chameleon 2. It might be a wild mixture of different components.