MacPorts 2.0 fixed all of the issues that I was having under Lion with 1.9.0. Thanks for upgrading guys! :)

To upgrade, make sure you install Xcode 4.1 via the App Store (free). That'll provide GCC. After:

    $ sudo port selfupdate
    $ sudo port upgrade outdated

All old versions of Xcode (4.0.x/3.x) do not work with Lion.