Video converter to other formats website

Hello everyone, this is a serious project and that is why description is so long :) Please note I am open to PHP as well, but it wouldn't fit into the suggested skills. I want to create a website that converts videos to mainly music without having to download any software. Site similar to [login to view URL], [login to view URL], [login to view URL], etc... Main thing would be converting online videos to MP3 (such as [login to view URL]), convert to .avi, .mov, .3gp, and .mp4. There would be something different on it. It would be a free membership site. You'd be able to convert one URL without loging in or registering, like video2mp3. Once registered, user will be given the opportunity to enter up to 3 URLs, each ane everyone of them will be converted one at a time but without having to go back to the site over and over again. Once you are a member, you could have 2 different categories: Basic and Premium. Premium would be paying a monthly ammount, for that you would have a 15 urls list. Normal, you start at 3 URLs, and the way to get more would be by refering new members to the site (and making at least 1 conversion). Each new member means a new URL for 15-20 days (not decided yet) and would go up to 10 URLs. In case you got more than 7 refered within those 20 days, the new refered would stay on stand by, and URL would come in when another previous refered period ends (hope that makes sense) That way even if you post it on FB for example, and got 23 people, you wouldn't lose any. There should be basic sign in details, such as username, refered number, email and password. System should recognize where it's from throug the IP and should use this system as well to add more than one language. Once you sign in you'll be given a user number to refer your friends. In order to save on downloads, each download (provably from youtube) to mp3 will save the mp3 file inside the hosting with it's related URL, and twice or three times a day keep the mostly converted ones and delete the rest, saving on downloads and disk space at the same time. The rest types such as video would be deleted in a short period of time. User would be able to share the site on social networks, and share the download link as well to them, as it would be active for a short period of time. That would bring as well new members. Once you enter one or more URLs, instead of typical message of please wait, there would be information regarding what it's doing, such as: currently 12 people in front of you, and once it's going down to 0, converting the file (with a time bar, such as when you are downloading something. That way user will see that something is actually happening. In the meantime, in case that opens in a new window, there could be an advertising spot, as well as many others within the site. At the beginning, I wouldn't like to use popups or pop unders. Just adds on the site, and on the download window. Once the convertions are done, they could be all directly downloaded by the user in no time. Membership area should be discussed, but there shoud be a place for it without disturbing the actuall page and the add spots. Something like a different page than the basic one. with a little space for member information on the site, such as username, refreals and time left for them, and on cue referals. With this, I intend to place country targered adds to them. There is a lot written but this is basically it. To ensure you have written it and got the idea write "acdc" att he end of your message/bid. Please contact me for any questions and I look foward to work with you. Regards.