Replying to Good with computers? please help

so i got a new HD and ram for my macbook pro. i got the ram in allright, but im not too sure how to go about the hard drive. here is what i was thinking:

backup my current HD with time machine or w/e the one is that comes with the mac

get new HD in, reinstall osx, and upgrade to leopard (i have all the discs for that)

use my file from time machine (the backup) and put that all on my new HD


before i do this, will it work?