I am new to the Mac platform and am used to reformatting PC's. It seems easy to reformat the mac but i have just one question. I have a MacBook Pro w/ OSX 10.4.11. When in the Disk Utility there is the option to format the 'Volume' called "Macintosh HD" or the option to format the physical Hard Drive, in my case a Fujitsu. If i format the physical drive Toshiba, it seems it will erase the Volume Macintosh HD. If this is the case, after formatting do i have to go into...