One of the important details in making a product for the consumer market is the look. Without spending a lot of time and or money, premade enclosures are a good option to get close.
For this project, I am planning on starting with this enclosure:Bud Box's CU-1941 (Picture credit: Digikey)
In addition to just a box, Digikey can customize itwith holes and add things like silk screen. Nice.