Hi! This is my first posting and I hope my point of view is useful to others.
I'm a Quality Manager with over 10 years experience.
First, I wouldn't exlude the finance / accounting dept from the Quality Managment System (QMS) even if they have their own regulations and documented procedures to follow.
To me, the QMS includes the entire organization even finance. For some reason, many financial managers fear QMS procedures because they feel these documents would and could be a source of nonconformance in any external financial audit. I believe their concerns are unfounded because QMS procedures pertain to operating procedues ... not financial procedures. If anything, QMS procedures might provide some insights to several financial processes and thus be beneficial to the financial auditor. Plus... for my approach, I rely on flowcharts so they don't get into lots of detail for the auditors to question.
Second. The finance dept. is involved in the top (quality) "management process" and the "sales process" through policies on product return and customer credit, to name a few. Also, sales budgets are a key part of all organizations annual operating budgets. Who has the most to say about budgets.... the finance and accounting people.
The sales department can not operate without the finance dept. and the finance department relies on sales dollars and customers. Bottom line.... if you include your sales dept in your QMS, then finance should also be included.

This is covered more fully in the attached flowcharts.
Third. Management plays a key role in defining the "training process". Since training crosses all departments, it should also include the finance / accounting dept.
Forth. My former employer was bound by SOX regulations. A key component in SOX is document control and at first, finance had their very own "doc control process" and "doc change process". How can a QMS registered company have two document control processes - one for finance and another for the rest of the company? The sensible answer is having one doc change process for the entire organization. This was the end result. Many of you might wonder about who has access to SOX change requests? The answer is up to the organization to define but for sure, the review, approval and distribution list is different than the list for QMS documents.
In closing, I hope my comments are useful to you. I know I threw out alot of ideas and maybe, I'll learn something from your feedback too!

I'm having too much fun with the "smilies"
Thanks
George