I am having a script made which is a Pay Per Download website to kick things off I need to get it started do you think I would be better using proxies or using my mobile broadband USB stick for creating You tube accounts and uploading? My broadband stick gets 15GB per month for 15 each time I unplug the stick it gets a new IP if I leave it a while the first set of numbers of the IP changes also for the phone verification I can get around 100 sim cards for 20. Do you think this would work or would Youtube still know its me?

Also lets say a video file is 30mb in size does that mean it will only take 30mb of my broadband or will it take more?