since this is pure fail already i'll make a deal with any php programmer who is willing.
I haz softwarez that duz all this and duz it weary wellz. It needs a small portion of it updated to grab the new flv locations since the last youtube update (7 lines of code). If anyone updates it they can have full access to use it anytime.
It can currently do exactly what the OP described at 46k frames/sec which is about 125 vids/minute. It can't do account creation but on top of doing video id lists it can also do keyword based copying (you put in a keyboard and it steals/watermarks/reups all 100 results)