Multiple File Upload Applet

I am attempting to code a JavaBean wrapped by an applet that will upload multiple files to a web server via the multipart/form-data mime-type.
I have moved a number of files to the web server with limited success.
I cannot move more than roughly 30Mbs of files in any configuration without causing a fatal exception.
I am confident that it is a limitation of the client's VM and the memory allocated to the applet.
I have seen several commercial grade applets that claim they can move any number of files even totalling 180Mbs.
My applet is very simple. It opens a JFileChooser dialog box, allowing the user to select multiple files and communicates directly to a server side component that accepts multipart/form-data.
I am navigating the protocol just fine. It seems to be a memory problem on the client side. Does anyone know how I can defeat this restriction and pass a reasonably high number of files (100-200) ranging from 50Mbs to 180+Mbs?
Secondly, why does this happen: when I put my files onto the output stream, no files move accros the stream until I call .close(). How can I write the code to begin transferring bytes as soon as I call outputstream.write(xxx)?

i am also developing multiple file upload applet and i transferred 1,4gb of data (2 files a 700MB) successfully.
also, i just transferred a few hundred files with total size of 900mb to my localhost webserver (~5000kb/s)
1) open file
2) read a few kilobytes into buffer
3) send them to the server
4) flush the outputstream (!!)
5) clear buffer and goto 2)
6) if end-of-file, close the file and flush again.
the outputstream is flushed every few kilobytes, so it will be sent over the socket to the server and not buffered until dawn.
i don't know how the server-side is working, but i used apache/php script.
you can try out my applet under
http://www.haller-systemservice.net/jupload/

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Title : Upload Friendly (Multiple File Upload Applet)
Description : UploadFriendly is an easy to use Java Applet that will allow multiple file
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Samples available in the following languages: ASP, ASP.NET, PHP, Coldfusion and JSP
Link: http://www.uploadfriendly.com/
Type: Commercial (30 days Trial)

Hi shiil,
To move the documents between site collection, content organizer rules would be a recommended method, you can activate Content Organizer features to enable content organizer rules on the site, to root the document to another site collection.
Also, for this issue, as Prasath suggested, you can check out the document in the ItemAdded event, then add ItemCheckedout event, in the ItemCheckedout event, delete the document. Or as content organizer rule does, you can create your own timer job to move
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More information, Content Organizer Feature Overview for SharePoint Server 2010 Developers (ECM):
http://msdn.microsoft.com/en-us/library/office/ee558288(v=office.14).aspx
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