Re: Snow Leopard for Mac
Yeah, having a second partition or drive is the way to go, whether you do a clean install, or a migrated install. Having a clone you can fall back to, or restore from might seem like extra work or expense to set up, but if it saves your precious data (or time!) just once in your life, it's worth it.
My motto, whether it's my own data or a especially a client's, is: COVER YOUR ASS.