Just in time for Audit Season, Microsoft is having a sale on compliance related modules for Dynamics GP.
Electronic Signatures and Audit Trails are 20% off. If you buy both you can also get Analytical Accounting, Field Level Security, Account Level Security, and Microsoft® Forecaster for $5,000.
Your partner can give you specifics. I can't point you to a website since the link I got from MS only takes you to the "ask for info" page and the discounts aren't listed on CustomerSource yet.
Speaking personally, we're looking at compliance products for GP. I've seen both the Audit Trails and Electronic Signatures products. My feeling is that they are both overpriced. Audit Trails in particular has several good 3rd party competitors that are considerably cheaper (Rockton, Fastpath) and they appear to have more functionality.
I would really argue that in today's world, the compliance stuff should be built in. Both Audit Trails and Electronic Signatures should have been part of a free enhancement pack. That would really add value to the annual maintenance fees.