Okay, this rocks: http://anyvite.com evite substitute w/o all the crap. ~philmang
Simple and Easy
Create an invitation in seconds, with only one required field!
Twitter Integration
Guests can help promote your event by tweeting about it!
Import from Everywhere
Build the guest list from your email address books
Mobile Access
Use Anyvite Mobile to manage your invitations on the go
Update Calendars
Add events directly to your iCal, Google, or Outlook calendars
Sell Tickets to Your Event
Easily charge guests to attend your event with integrated payments