On the PC, share your My Documents folder and give read/write access to everyone.
On the Mac, go to the Network page, via the Go menu (OS X) and log onto the PC. Once logged in, it is a simple matter to drag and drop your files over your local network
Once you have moved all the stuff over, you can remove the Share from the My Documents folder
Hope this helps
I have a PC on the same (home) network as my Mac and I want to get a large chunk (12gigs) of data from my Mac to my PC. What is the best way to do this? I've already tried sending them over AIM but the transfer always conks out somewhere into the process.