plugins drag and drop file upload

I would like to make a jquery plugins for file uploads drag and drop. I created a plugin it myself but I had a trouble along the way so I prefer to ask freelancer. So are the specifics: with multi-upload progressbar file-upload with maxconnection example : maxconnection : 1, 1 files in progress and other files pending.. speed-time upload a file type (1 of 3 255 KB / sec, times 29 sec) -error handling in case of trouble type (file too large, unauthorized extensions etc ...) and if drag and drop is not supported by ie then it displays a simple input multiple ... a short video to see an example [login to view URL]