Currently Being ModeratedFeb 4, 2013 4:11 PM (in response to alphacenturia)
You can find step by step guides here http://www.ifixit.com/Device/MacBook
As for the data transfer I would put the new hard drive in an enclosure and using a utility like Super Duper or Carbon Copy Cloner I would clone the existing internal drive onto the new one. Then replace the drive and once you're sure that everything is there and working you can erase the old one and have an external drive for storage.
Currently Being ModeratedFeb 4, 2013 4:15 PM (in response to Mike Sombrio)
thank you very much Mike!
what's a Super Duper or Carbon Copy Cloner. something i can buy?
Currently Being ModeratedFeb 4, 2013 4:23 PM (in response to alphacenturia)
Yes they are backup utilities. Get CCC here http://www.bombich.com/
Or SuperDuper here http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html
You only need one. I've used both and both work well.