Hi all, I've researched and posted on similar minded threads and I can't seem to find a good answer, so I'm going to start my own thread. I have an old 2007 macbook and a new 2011 macbook pro. I've bought two intel 320 120GB SSDs to install in each to have dual boot Lion/Win 7 machines. Hopefully some of you experts can help me with the following 1) Before I start: I'm going to do a clean install of Lion and Win 7 on both machines' SSD, rather than just super duper clone/copy boot info from each OS to the partitioned SSD. For the MBP its not as important, but the MB i've had for a while without ever doing a clean install. How necessary/valuable is a clean install to the SSD, or should I just copy the boot info and applications over? If it doesn't really matter whether I do a clean install or not then the rest of my questions are moot. 2) If I'm doing a clean install, here is my plan. (after I make clone my HDD to an external to be safe) a) format the SSD, create a lion boot usb,. b) physically install SSD in HD bay and install OSX onto the SSD c) use boot camp to partition the SSD (80/40) to install win7 d) physically install old HDD into the optibay. Here's where I'm stuck. Should I wipe the old HDD, then (somehow) transfer all files except for the OSX/Win7 and applications to the HDD and then drag any files I need from my external to the wiped HDD? Or should I just keep the old HDD as is and erase the operating systems off of it? Either way, how best to partition/format the HDD? Finally, how do the operating systems know how to find the info that they need on the HDD? What I really need is a step by step instruction on how to optimally go from a single HDD with both Lion and bootcamp Win7 to a SSD/HDD set up with a dual boot option on the SSD. You'd think someone on macrumors has done this but I can't find it. It is a lot to ask of you guys but any help is appreciated. I'll surely find some way to pay it forward.