Option 2: Get a Gparted live cd (look for it at distrowatch.com) ... the ISO is much smaller, and it's good for one thing and one thing only... partitioning..
I'd go with this option if I were you. The place to get it is here: http://gparted-livecd.tuxfamily.org/
. I use it whenever I need to resize or repartition. It has not failed me yet. That being said, you should really back up any important data on that partition, just to be sure.