advice to choose right plugin

Hi:
Please give me advice to choose right plugin or pack of plugins.
I’m is going to provide art workshops on line, so I need nice membership plugging with ecommerce abilities like a paypal integration,
also I would like to provide for my users personal profile- art gallery page (kind of a litle portfolio online),
And that’s will be great to integrate with facebook is much as possible,
Like registration with facebook login, publish to facebook, avatars looks like on the facebook (or even using faceboks avatars)…
I think we’ll be very important to have some kind antispanning features, like immediate , delete or bann.
Thank you in advance.