I have an idea for an app and would like feedback as to whether you would want it and how much you would pay. I basically want to make something like Dropbox where you can store your files online and they are automatically synced, but instead of storing your files on a third party's servers, store them on your own computers. You would set up the app on all the computers you want to save your files to and then you'd have a RAID-like setup where if one computer (or maybe more) is destroyed, the rest would have backups of the file. It'd work a lot like Bit Torrent.

Would you pay for something like this? How much?