Plugin/Theme advice

Hi

Been browsing through WPMU and i am very impressed. I was hoping for a bit of advice on where to start for a project of mine:

I am looking to develop:

1) A website that is image heavy
2) Be able to have the images voteable - So the highest rated show highest and also the most popular appear on the homepage in a slider style arrangement
3) Have calendar/event integration
4) Easy to assign affiliate links by keyword association
5) Forum/Community integration

Can anyone recommend themes/plugins available here or elsewhere that can help me with these aims?

Thanks

jon