Well being a Lenovo you have a few options.
1. Lenovo's own Rescue and Recovery:
http://www-307.ibm.c...igr-4q2qak.html
2. Acronis True Image 2011 (What we used, not free)
First option came pre-installed on your system, although if you did a clean install you might have wiped it off. That is more of a lengthy run-around option, but can still be used if you create a "boot" cd/dvd, and backup the data to a designated network source or USB drive.
Second option isn't free, but is probably the easiest solution there is out there. Buy Acronis, make a boot CD or boot USB thumbdrive, have old and new drive plugged into the same system (one might be connected via USB) and follow the steps in the process. It will scale the partitions for you and handle all the steps with as little chance for error as possible. Just make sure you select the old drive as source and new drive as target... don't want to clone blank data to the old drive and delete everything
If you want a more detailed walkthrough of the Lenovo R&R process let me know. Its the free option in all of this, and works great... but has more steps and takes longer.