Sustainable, recycled invitations

We've recently started to think about our wedding invitations and how to keep them environmentally friendly. Unfortunately, our budget has gotten tighter due to the rough economy, so we're thinking about keeping some aspects very digital. We've always had the idea of paperless RSVP's via our wedding website that we plan to create. But now we also think our "Save-the-Date" announcements may be online as well.
The actual wedding invitations I will be traditionally mailing. So I've looked into various places to purchase recycled paper products. Here is one that I've found and am very interested in:

Natural Banana Paper from http://www.ecopaper.com

"Our organic banana papers are made from combining tree free agricultural bio-products coupled with 100% post consumer content to create a beautiful paper that is laser and printer compatible. Both the agricultural by-product of the plantations and the post consumer paper create serious solid waste problems worldwide--help combat both with these tree-free papers. A percentage of each sale goes towards an orphanage in San Jose Costa Rica."

The Banana paper has a neat texture to it and it looks very natural, which I also like. We're thinking that our invitation style will be very simple in order for us to use less paper and we're hoping to print these ourselves. I may get crafty and add alittle of my own traditional art to each invitation, but we'll see how much time I have! :-)