Need a cool logo for new mortgage advice site

ratedoctor.com.au

We are an independent loan brokerage company. We believe in a unique customer-focused approach to getting people the right deal for them. We are people with loans ourselves and want to get the best deal possible for our customers.

We are a young, competitive company based in Australia and focusing on the residential and commercial market

We are targeting a well beaten path - there are a lot of "comparison" and "advice" sites out there. We want to sit down and go through all the options.
Our target audience will be young couples seeking their first mortgage and/or families looking to re-invest or upgrade their current lodgings.

What we need in the logo is something that symbolizes rate doctor.
It is needs to be unique so that it will put rate doctor into people’s mind when they see the logo straight away.

We have identified the following elements that we believe bring this in mind:
Doctor bag, Bank Note, Coins, Stethoscope, Heart.

We would welcome something that uses these elements, or represents the Rate Doctor word in an inventive and recognisable way.