Recently I made the switch from Dreamhost shared hosting to virtual dedicated Media Temple setup. So far I’ve been happy with MediaTemple, though the ease of website management isn’t quite as good as Dreamhost in my opinion.
The speed increase has been very noticeable, and I think that have the ability to customize apache to suite the needs of WordPress will be a huge benefit.
I apologize if anyone has noticed unreliable down-time with the site recently, the A-record switch was little rough due to a few unavoidable hiccups. Everything should be back online now.