not really that difficult use CarbonCopyCloner to clone your current windows partition HDD to your external.. then take the partition out of your main drive when SL comes around.
not really that difficult use CarbonCopyCloner to clone your current windows partition HDD to your external.. then take the partition out of your main drive when SL comes around.
CCC doesn't copy windows partitions... Aside from that there are all sorts of other problems when it comes to booting windows from an external that require modifying some boot parameters inside files within the installation CD itself.