It's a very easy but very time consuming thing to do. Why don't you try yourself? Just go through the images/statusicon and images/buttons folder replacing any buttons with plain text versions.
Thanks for the response Xoligy... I'm clueless when it comes to Photoshop, etc so I'm hoping someone out there has made a text-only button set (I'm actually stunned no one has done this before).
Sounds like a good time to pick up photoshop (or elements if you're on a budget), read a few online tutorials and add another skill to your repertoire.