I switched to a new theme & logo at MacMegasite, and I also de-cluttered the sidebars. I’m still looking at more themes and working on the logo, so I may still change it if I find something I like better.
The last few days I’ve looked at a lot of WordPress & Drupal themes. Almost none of them are truly ‘ready to go’. I always find little bugs such as misaligned list items or conflicts with various modules. I also found that many of the WordPress themes that claim to be widget-ready really aren’t.