Using Google Forms and PayPal together, without some sort of Google Docs add-on for PayPal, would seems tedious. While it’s not very exciting, Evenbrite sounds like your best bet.
http://help.eventbrite.com/customer/en_us/portal/articles/428604
I’m not sure how the pricing compares. It looks like they’ll charge up to $9.95 per ticket, not including payment processing. Theirs is 3%, not sure about PayPal or Authorize.net.
It appears they have a MailChimp app to sync attendees.
