Adding user submitted events calendar / news to wordpress si

News site wishes to include user submitted content - news stories / images etc. Also want to include an events calendar where users can submit event details to the site. Currently experimenting with Eventbrite Events calendar and TDO miniforms. Looking for different options/ideas such as if users wish to include event on our site we have an option to charge them must pay a £5 charge. Additionally - looking at options where people can buy tickets via the site. We have a very small budget also.