Fast Transfer of Huge Data Need Help!!!!

Hi,
I want to move a huge amount of data (e.g 25 mb to 50 mb) from one remote server to another remote server.And i don't have telnet access.
Moreover i don't want to stay connected all the time.
Does anybody know a tool that can be useful to me ??
Any help in this regard would be sincerly appreciated..
Eagerly awaiting any response

Thanks/Regards
Great Techno