After doing a soft reset, I was halfway between a Gutsy install and a Feisty install. I knew the process probably crapped out as it was configuring installed packages, so after running dpkg --configure -a, I was looking good. Also, I ran the update-manager one more time, and it told me I had an unfinished partial installation, and finished it up for me. Despite running Gutsy smoothly, that nagging feeling in the back of my mind that tells me to use Gentoo is getting stronger.
UpdateI also noticed I had to add thinkpad_acpi to my /etc/modules after upgrading, otherwise my fan would not work.
UpdateYou'll also want to update your 3rd party sources. I use Medibuntu and Wine, and their sources can be updated adding the following lines in /etc/apt/sources.list:
# Medibuntu multimedia packages # GPG key: 0C5A2783 deb http://packages.medibuntu.org/ gutsy free non-free #deb-src http://packages.medibuntu.org/ gutsy free non-free # Upstream Wine # GPG key: 387EE263 deb http://wine.budgetdedicated.com/apt/ gutsy main deb-src http://wine.budgetdedicated.com/apt/ gutsy main