Two columns or three? Wow, what a debate..

I really like this theme for Drupal, however, it's two columns... And I am really starting to dislike the lack of room for stuff above the fold. Thinking about switching out to a three column theme, but there are some inherent problems, so I'm asking for some input.

First, this theme might be converted to having a third column some time soon... But who knows. I like the look, i just don't like the limitations on space.

Second, there are not a lot of themes available for Drupal 6 yet, so the balance between function and form is very much lopsided. Eventually I'll attempt to make my own, but I've never tried making themes for Drupal, and it's a bit intimidating.

What would you do, if you were in my position? Differences in opinions between two and three column layouts? Ways to work around the space limitations of a two column layout? I'd love to hear your opinions, so please leave a comment or two!