http://www.pcmag.com/article2/0,1895,1854493,00.asp
Read this article, you can mount ur gmail account as a 2GB Hard Disk, and access it just like any other windows hard disk.
Transfer ur files to it, and download it from anywhere, mounting it as hard disk.
Download and install the utility from here.
http://www.viksoe.dk/code/gmail.htm
If u don’t want to mount as hard disk, but still want to use it, try this firefox plugin. (of course u need a firefox browser)
https://addons.mozilla.org/extensions/moreinfo.php?application=firefox&category=Newest&numpg=10&id=1593