Yup, what Jayden says is spot-on. A few things I would recommend to help reduce theft are:
- install strongbox to protect your members areas from account sharing
- watermark your images and videos
- stay away from DRM on your videos, these may help reduce copyright but it really pisses off legit customers and there are thousands of DRM-breaking tools out there so its ineffective anyway
- talk to a company like pornguardian, they offer services for getting your content removed from various sites..I will ask them to come here and explain their services.

As for hosting, I always recommend NationalNet as these guys are the best in the business, bar none! And for billing, CCBill and Epoch are both the industry leaders and are both great choices.

Good luck revamping your project, be sure to share your progress with us too

cheers
Luke