Use the 700ge as a wireless hard drive

It's been a bit quiet around here, but here goes:

I've had this device lying around for a few years, and now I would like to turn it into a wireless hard drive. I don't need to use it as a router; I just want to place it somewhere in my apartment and be able to access it as a drive letter from my computer or at least through the units browser-based interface.

So here's what the setup might look like:

My Computer+Wifi Router connected to the Internet

Or my laptop accessing the internet from My Computer via Wi-Fi

>> accessing the 700ge through my wifi network for file transfering

Any ideas on how to go about doing this? is it even possible?

Thanks!