There are many tools that do this. However, I would suggest staying away from them. Spend that money on create valuable content for the users. There will be a better long-term roi and the risk of getting a algorithmic or manual action taken against your site is greatly minimized. Good luck!

Umar has a great list. I still use Microsoft Movie Maker. It doesn't have many tools/effects some of the competitors have, but easy to use.

For filming we use a Canon Rebel SLR camera and we get decent results. Here some tips. We also use Fiverr to create some custom intro's.

Yes, stick with folders. It's much simpler and much better organization (states correct as Atlanta a city).

Yes, it's good to only have one H1 tag. However, will you get penalized for having more than one? No, just use them sparingly (according to Matt Cutts here).

Have you looked into ahrefs? I know a ton of horsepower behind it, but don't know if it can handle checking 20m. Good luck!

Traffic Sources => Overview => Hourly (inside the line graph)

No problem deleting them. Google and Yahoo does not use it as a ranking factor. Also, if stuffed could impact your rankings on Bing who uses as a spam signal.

Extremely important (and will continue to be).  Also, continue to use alt names and meta info.

It's also good to have good naming convention for image files on your site.

Alex, I prefer to have the most relevant term in the url. No big issues with what your doing except the url being a bit more difficult to understand. If you do decide on one term, I don't think you will be missing out on traffic for the other term as the rest of your on-page seems to be optimized properly for the that term as well. Good luck!

Yes, I typically always do and place it after the topic of the page:

Plagiarism Types | Brand

It helps with brand recognition.  Just remember that if is a long brand name it will get truncated. Also, make sure you have a compelling meta descriptions to improve click-throughs.

Good luck!

I agree with Marcus. Also consider if you are also hosting the sites, they may all share the same ip address. This may be consider a link farm, but if it's nofollow and a branded term don't believe it will matter that much.