I agree with MrsFlutter on the having it consistent with your invites, and your placecards, programs, and other wedding paper stuff you do- I love nice paper and when everything works together.
Of course I did cheap photo save-the-dates and I am doing engraved invites, so mine don''t go together at all, but it when they coordinate.
thanks guys. i really like them a lot. i agree about things going together, but there are limits -- $$$ limits. so the STDs and invitations/envelopes will all match, but then I'm going to use the same colors/general feel for things like programs/menus...
jcrow: I was planning on the & the card i posted is just a sample they sent to show me the design and colors...but a great suggestion