Accountancy Logo - Professional theme

We have agreed the basic logo design in black and white through a Sitepoint contest. We now want to agree how the logo will be incorporated into our overall livery.

McEwen & Co Chartered Accountants

Desired Color Scheme:
We have not decided on colors but we want to avoid red and anything drap. Shades of Green is our current preference. This will be a 2 color print

Desired Style:
We are a firm of Accountants so the theme should be professional.

Accepted File Formats:
We would like a Corel Paint Shop Pro file or Microsoft Office Publisher.

The logo needs to be adapted (ideally through crowdsourcing) to make use of the full design tools available i.e. shading, colour. One idea is to have the top triangle a different colour to the bottom. We do not want to change the basic shape of the logo, but shading could imply the hidden shape of the M, see:

http://www.mcewen.co.uk/jump3.htm

We want the wording to be McEwen & Co Chartered Accountants, Then the following listed or bullet pointed services: Business Advisers, Tax Consultants, Accounts preparation.
Fonts: We would like the fonts to be modern and want there to be no licensing restrictions. The name of the font and general use of it will be necessary, so that we can incorporate it into a letterhead revision.