Hey,
I happened to come across a site
http://www.ftpy-ah.com
this site may not be perfect but it does serve the purpose of transfer of data from one remote server to another. And it is unbelieveably fast.
Morover one does not have to be connected to internet all the time while transferring data.
Just fire commands & go away.
Yet in the background all ur commands will be processed.
Do give ya feedback
Regards,
Merryfi