We came across the most fabulous site for party planning and wedding planning called http://www.cleverparties.com/.
If you are looking for theme inspiration or for products to fit into your existing theme, check out this site. All you have to do is create an account and you can begin searching by Category, Occasion or Theme. The site is quite new and is a little lacking in areas such as Stationery & Invitations, but play around and you may come across some products or websites that you wouldn't have found otherwise.
The BEST part of this site, in our opinion, is the access to "The Clever Community" page where you have access to other members public pages. They add their "Clever Party Ideas" and you can view products that they have rated on their individual pages.
Here is a sample from cleverparties of a couple of their theme photos. So pretty it makes us want to throw a party!