Hello! Our invites came in a while ago but I figured I'd get a review in for them. We used The Green Kangaroo at tgkdesigns.com; they had the best-looking mountain-theme invitation I could find online, and although they were going to be a little pricier than, say, vistaprint, the basic invite wasn't out-of-this-world expensive (about $350 for 75 invites). TGK lets you choose from a long list of fonts, and we could customize the color of our invites as well which I thought was pretty cool. They give you 2 free online proofs (which is good because I needed to edit the initial info I put in), and shipping was a lot faster than I thought it would be. They turned out great, and thankfully they send you plenty of extra envelopes (we got 10 extra innies and 10 extra outies), because I kept messing up my addresses!
We added matching info cards and postcard RSVPs, though there are several options for info card sizes and regular/postcard RSVPs, too.
To sum up: A bit pricey, but overall very well-done and I was pleased with the end result.