Hello. I'm sorry if this is a repeated question, but I couldn't find any posts relevant enough to help me. About a year ago, I upgraded the hard drive in my 2006 model white MacBook. It now has a Western Digital WD3200BEVT... 320GB 5400rpm. I recently purchased a new 13 inch MacBook Pro, and would like to put the Western Digital hard drive in the new MacBook Pro. Both computers have Mac OS X 10.6.2 installed. My plan is to open the MacBooks and put the WD into the MBP. I'll boot from the reinstall disc that came with the MBP and install without formatting. My question is: should I be okay with my stated plan or should I do a clean install? Do you think I'll have any trouble with this? Any tips or suggestions are appreciated. Thank you.