You can get a great do-it-yourself type website from www.weddingchannel.com.
Our URL ended up being http://blairlaw.ourwedding.com/ - If you're interested in seeing the full site, just email me and I'll send you the password to get in and see all of the features it has.
I especially like that it is easy to format for a non-computer programmer type, and let's you easily upload pictures and info for your guests to use.
Check it out, and let me know if it was helpful to you.
~Josh~