As long as the cpu, ram, board, video card etc stay the same i think you could just image your current drive and then when the new drive is installed just load the image onto the new drive.
Edit: for disk imaging Acronis works well http://www.acronis.com/homecomputing...cts/trueimage/
Edit: for disk imaging Acronis works well http://www.acronis.com/homecomputing...cts/trueimage/