Howto move 13.1 to new HDD

First, I would like to extend my thanks to the OpenSUSE team! I had a stable system running in 12.3. There are 2 SATA disks which I will refer to as sda and sdb. Various linux distributions litter sda and sdb. OpenSUSE 12.3 and my data live on sdb.

I backed up my data in order to do an upgrade of 12.3 to 13.1. Grub2 (I guess)is installed on sda with boot files on sdb. I booted from the OpenSUSE dvd, and followed the upgrade prompts. The installer figured everything out, did a smooth upgrade, and now I have a working, stable 13.1 system. Many thanks to the team who did this!!!

Here is what I want to do now: I have a new SATA disk (I'll refer to it as sdc) that I would like to move 13.1 and my data onto. I want to remove the old sda and sdb disks from the computer and just have one SATA disk.

So as I see it, I have to:
1. Physically remove sda from the system.
2. Install grub2 on sdb so that I can boot into 13.1. (I need suggestions on how to do this...)
3. Backup 13.1 and my data. (easy)
4. Restore from the backup to the new disk. Physically remove the old sdb from the computer and boot into 13.1 on sda and be ready to go. (Is there a "gotcha" here or will just unplugging the old disk and booting work?)

Am I missing any steps in my plan?

Also, thanks for any suggestions for my questions with step 2 and step 4.

Mark