Anytime, been playing EDH for years. Welcome to the format, enjoy. Emrakul got banned too, you can check the rules here: http://www.mtgcommander.net/

Thank you, love the Memnarch idea. 

Yup, the EDH rules committee just fixed that rule:
The other announcement is the introduction of “Color Identity” as a concept for building your Commander decks. Color Identity will be added to the Magic Comprehensive Rules and indicates that, when building a Commander deck, the mana symbols in the text box are just as important as those in the cost of a card. The Commander's color identity restricts what cards may appear in the deck. Some details:
 
The color identity of a card is the colors of all mana symbols on the card, along with any color defined by a characteristic-defining ability (CDA) in the card's rules text. Cards in your deck may not have any colors in their color identity not shared by your Commander. Mana you produce of colors that are not in your Commander's color identity is colorless instead. Mana symbols in reminder text are not part of color identity. The exciting thing about this rules change is that we can now play some legends that had previously been self-banning by having colored mana symbols in their text box that were not also included in their casting cost.
 
So now Bosh, Iron Golem, Memnarch, Thelon of Havenwood, Daughter of Autumn, Rhys, the Exiled are all legal as they should be.

I'm new to commander, so to my understanding, Bosh is colorless so therefore the deck must be colorless.  Is this deck legal?

All the decks in the EDH folder are named by who their commander is. In this case, Bosh, Iron Golem

Who is your commander?