Congrats and welcome to BDW! You didn't say much about when or where you're getting married, but I know you'll find tons of information and ideas that will help you out.
I don't know if you've heard of a site called "Vistaprint". It's quite popular with the brides on the site. They're at www.vistaprint.ca and they do ship internationally. Their prices are very reasonable and they are always running sales with discounts. I know right now they have something on where everything is ten dollars so it may be worth a look.
The other site I know a lot of the brides use is www.etsy.com I believe there is somewhere on there that allows you to download templates, but there may be a cost invovled. Definitely worth a look. They have almost everything you can think of there - jewellery, veils, cake toppers, invites, flowers. It's all there.
I would also suggest that you do a search in the search bar at the top for whatever you're looking for and see what it brings up. I was just looking for the rack cards the other day and did it that way, and ended up with about half a dozen different ones to look at. Then I went onto vistaprint and voila! I now have "Do Not Disturb" rack cards!
I'm sure there will be other brides to be that will chime in along the way and pass on other tips!
Good luck and happy planning!