Okay, so I am finally finished with these babies. I designed the cards in Powerpoint and then had them printed by Vista Print (free 100 postcards). I also took advantage of the free stamp offer and used that to stamp the return address on the back flap of the envelope. I lined the envelopes with design paper (can pretty much use any pretty paper that you like, you just have to make sure that it isn't too heavy).
I used a corner rounder to smooth the edges of the cards so they would have a finished look.
This pic was my first "mock up" so the liner wasn't straight. But I redid my template, and the final product looks just beautiful. If anyone wants the template, please let me know.
sorry the pics are so big, I have to figure out how to make them smaller.