(1) Put your old drive in an external enclosure.
(2) Install the new hd into your MacBook.
(3) Plug in your old drive in the enclosure.
(4) Pop in the install DVD of OS X and lauch Disk Utility from within. Restore from your old drive.
(5) Go, get a coffee, go running, do the dishes, etc. This may take a while
(6) When it's finished, you reboot into your old system. It's exactly how it's used to be.
