I recently redesigned my WordPress blog site, and was really impressed with the different "layouts" and appearances that one could choose between (submitted by the community of WordPress...ers). At the same time, I was redesigning our church bulletins, and I shared it with a few friends, who promptly asked, "wow, did you do that in Service Builder!?" I had to respond that, no, unfortunately, I designed it in Publisher (as a template) and just plug in the propers each week. (can be viewed here. http://pastordbeck.wordpress.com/2011/12/12/new-bulletin/)
I'd like to suggest some sort of venue for the sharing of these files. Whether they are shared as Templates for Microsoft Office platforms, or somehow integrated into the Service Builder itself (strong preference for the latter!) I think it would be a great way to collaborate in worship planning, and in designing and producing worship materials for each Sunday.