I chose dwdrums.com because I am a drummer and have been one for 9 years, which is just shy of being half of my life. I hope to one day own a set of DW drums, but they are quite expensive.
Drum Workshop (DW) has a very nice website. The navigation is easy; it looks like it fits into an 800 x 600 window; and the page uses a nice mixture of normal content and Flash. They categorize their merchandise making it easier to find exactly what you are looking for.
The code is well written and well organized. They used appropriate indentation to differentiate the levels of nesting. They used a table to organize their information on the page.