I am in need of a secure digital signature solution for an application my company is creating. It will be a ASP.Net intranet application which simply will present the logged on user with a bit of information they need to verify, and some sort of control for them to click that will allow us to track that they agreed with the information presented. There only be about 100-200 distinct users of this application.

We looked in the obvious direction of VeriSign, but they were simply too costly in both upfront (10k) and maintenance (35k a year + 40.00 per user). An hour or two of Google research present a HUGE number of other options, none of which we are familiar with.

My company is not extremely tech savvy, so a solution that is fairly simple to maintain is important as well.

Thanks in advance.