Hi ladies!
Just FYI, we stole an idea from our friend that made collecting our guests' addresses very easy. In Google Docs you can make a form that your guests can fill out that will then dump all their information into a handy spreadsheet. The form has a URL associated with it, so you just create the form and email everyone the URL. They don't have to have Gmail to be able to use it. They just go to the site, fill out the form, and a spreadsheet is created for you with all the resulting information. Our form asked for their full name, address, their spouse's full name, etc. It's very clean and simple.
Since so many of our friends and family have moved around, this was a great way to confirm their information. For the older folks who don't use email, we just called them and added their info to the Google spreadsheet.
Let me know if you want to try this and need help with it.