I would recommend using a wiki to store the policies, you then get versioning, etc. You can also create templates which include the document control information you need to evidence such as the change date, approval date, effective date, etc. You could probably get away with a lightweight wiki, but if you have SharePoint or KnowledgeTree those might be the way to go. Semantic Media Wiki might also be a good choice. The wiki route is also good because you can embed keywors and tags, such as the applicable PCI requirements which makes it much easier to track individual policies and cross reference.
If we look at the PCI Scoring Guidance, we see that 12.6.2 says
12.6.2 Verify that the security awareness
program requires personnel to
acknowledge, in writing or electronically, at
least annually that they have read and
understand the information security policy
Always consult with your own QSA, but if you have a small enough group, you can probably combine this somehow with your annual training in 12.6.1; do a training session with a sign-in sheet and another column for policy sign-off.
If you use outlook, you can use the voting button functionality to collect responses, but you would probably be best served implementing some type of survey web-app that allows you to build survey questions. You could be extra rigorous and test them on what they read, but your basics would be a name field, a checkbox, and maybe an additional field for initials for a digital sign-off. If you use SharePoint, again this can be used to collect surveys.
I don't have any familiarity, but I did a quick search and came up with these: