We know what you're thinking: The only thing missing from my ridiculously expensive, excessively tricked-out toilet is a USB port. Well it's time you welcomed your posh posterior to the 21st century, because Kohler's just released the second edition of its now $6,000 throne: the aptly named Numi Comfort Height. In addition to the aforementioned port, which will enable quicker software updates, the outfit has enhanced the commode with a Bluetooth receiver for streaming tunes to your tush; SD card reader for importing playlists and pe