I am considering an external drive for backup, more space for apps, music, etc. Is their a size limit in OSX for partition size for drive space? This drive bay I was looking at seems to think their is. http:www.fwdepot.com/thestore/product_info.php/products_id/1066 If I got a 500gig drive with the aim of adding another later maybe how many logical drives would I end up with? (remembering windoze past here) Is this easier or harder with OSX? Thks. P.S. I dont need a terabye of space at all. I dont even need 500gigs but the idea is really sexy to me!