Well, actually I have XP-Pro from a trashed desktop that I am planning on installing on this desktop and the laptop is already running MCE, which if I am correct is Pro. But, and call me crazy, I was actually waiting to reformat all my pc's until after SP3 was released.
But I was playing around with it some, and on my NetworkCard properties on both machines-the file sharing option is checked, which I believe to be correct. I noticed that the file sharing option was also checked on both of the pc's Wireless connections. So it would make sense to me that if I uncheck the file sharing boxes for each pc's wireless but leave it checked on the Wired connections, then wouldn't it only shared the "shared" harddrives and folders through the Wired connection and not the wireless?