2003 Honda civic si - steering tightness

The steering on my honda has gotten too tight, and is squeaky. The power steering fluid is full. The car starting having the problem with a recent oil change, though for the life of me and can’t imagine a connection. But it is a coincidence. Any one with ideas on what to look for or how to evaluate?

I found someone on youtube who has the same problem and filmed the audio, check it out: http://www.youtube.com/watch?v=QtAmJNdfsWI

…though no one seemed to offer a great solution.