There has been times where I'd like a Shapeshifter Theme and then after about a few hours of using it... my eyes would get sort of fatigued and I couldn't use it anymore... or I'd notice something that really clashed with an Application or something or maybe something would look out of place. At least with Aqua... EVERYTHING is gonna match such as icons and 3rd party Apps. I wish Apple would stop integrating new UI elements into their Apps as embedded things like almost all of the iApps.
What's the deal with that? That means that themers, have to theme all of these Apps as well as the actual OS. Why don't they just use the GUI elements from the OS rather than building them into each Application?
</small rant>
Anyways... Aqua seems to do the job, I just need a refreshing interface for a refreshing year and an advanced new operating system... AKA: Leopard