You could get something like this to put your drives in. http://www.newegg.com/Product/Product.aspx?Item=N82E16822122130&ignorebbr=1&cm_re=PPSSPRONASDISK-_-22-122-130-_-Product
Hook it up to your network, set up port forwarding (Decent info here: http://www.columbusracing.com/forums/showthread.php?t=121080&highlight=forwarding) then connect to it using filezilla or your favorite FTP client. You may want to evaluate your internet connection before you do this. Most home internet connections have terrible upload speeds.
Also, its just a server, not a cloud. (pet peeve of mine)