hi i have a windows pc desktop, and a macbook. I often find myself transferring the odd file to mac, and its a long winded process as my pc is strange. Can i just set up a folder on my pc which my mac can access wirelessly? network? would this be via internet? wi fi? bluetooth? I would just like to access and download the file to mac, wirelessly. is this possible? ive noticed on my mac finder window i sometimes have my desktop pc listed under the shared heading. but ive never learnt what and how this is possible. any help or pointers in right direction would be most helpful. thankyou.