[Stingray]

I have PPC-6700 and I just installed a 2 GB SD card on it. Here is what I want to do.......
I want to create a folder on the SD card and then share it. Then I want to be able to access that share from any computer on the network. I sometimes have to transport files from work to home and really don't want to hook up the PPC to the laptop to be able transfer files. This way I can just access the shared folder through WIFI and drop the files in and out as I please.
Is it possible? can the Share be password protected? Is there a program on the market that can do this?