I am currently using a E-Machine E510 (piece of junk) but yesterday I purchased myself a Macbook Pro 13" i7 for delivery in the next few days, and have also purchased a iOmega Prestige 1TB Portable External Hard Drive so that I can transfer files between the two, and back up both machines. However, upon further research I have found out in order to transfer files between Mac and PCs that a hard drive must be formatted correctly. Can anyone assist me in how I can go about doing this?