Does the PS3 allow file sharing? If not, you're done. If yes, turn on File sharing on both the PC and the PS3.
I would like my PS3 to access media that I have on my desktop. My desktop does not have a wireless card. It is hardwired to a an ATT U-verse Gateway (3800HGV-B). Is there a way to have my desktop broadcast a signal through the router so that my PS3 can access music/pics/videos that is on my desktop. I'm quite tired of shuttling a USB stick back and forth from room to room.
My desktop is running Windows XP. Connected to the wireless router by ethernet cable. The PS3 works with DLNA if that's any use.