Hi, used to do this type of work for txxx and Hclips. In fact, had that job for more than 3 years, meaning that I probably did tens of thousands of descriptions lol. Anyway, I think I know exactly what you need, so yeah, I think 100 vids a week should not be a problem. Actually, I used to do 50+ a day...
If you wish, I could do a test, free of charge of course. Let's say 5 videos. Just so that you can see if I'm any good :).
Okay, that's it from me. Let me know if you're interested!
Thanks,
Zare