so i recently got a great deal on a macbook pro, at a pawnshop no less lol. i got it for 400 bucks cuz someone was evidentally in great need of money and hocked it, and the pawn guy knew nothing about comps and said he would sell it for 500, and i talked him down to 400 lol. anyways, it is in great condition, it is the 15 inch version and it has 2.2 ghz and 2 gb of ram, but the weird thing is i guess the person took out the hard drive and put in a little 60 gb hard drive before he pawned it off....cuz it has 60 gb hd, so i am upgrading to a seagate 320 gb hard drive. well obviously i dont have the OS disk, it currently has leapord 10.5.5. im not super with computers, i mean i know a bit, but not much and am fairly new to mac. but is there anyway to burn the OS from the hard drive before i upgrade it to a dual layered dvd? or transfer the OS after the hard drive switch? i just need a way without having to pay 200 for a new OS disk or to get an OS installed. any help would be appreciated. thanks!!