We just got our save the dates back from mpix.com. I can't say enough good things about this site. Super easy to use, and we got the save the dates within 3 days of ordering them, and they were way cheaper than Shutterfly.
Also, went and checked out Bride to Be Consignment in Burnsville yesterday. For a little shop, they have a ton of stuff. I didn't buy much yet, just a couple little things for some upcoming showers, but I definitely got some good ideas by browsing their selection. If you're stumped on decoration ideas, or don't want to spend full-price, definitely check them out.