Migrating to new hard drive

[MrProsser]

I am just getting back into using linux after a long absence so I am pretty rusty right now and could use some help or advice. I recently installed lubuntu 12.10 on an old desktop I had kicking around, with the intention of using it as a software development box. It just has a small 40 GB hard drive in it. I realized that I actually had a 160 GB hard drive kicking around and would love to use that instead, so I was wondering how I could go about migrating my /home and installation over to the new drive and increase the size of the partitions. I do not really want to reinstall if possible. I found a few guides, such as: http://ubuntuforums.org/showthread.php?t=599599 but it is pretty old. I was wondering if it is still valid, or if there might be easier methods to accomplish this now.

Anyway, any advice would be really appreciated.