First, I will start off by saying I am not the most knowledgable guy on computers, but I know quite a bit. Here is my issue:

I come home last night and jump on the computer. I notice that where it usually says Wireless Network Connection (linksys-g) it now says Wireless Network Connection (jackson). Alright, I figure that I will switch it back and remove that from my list. No dice, it keeps popping back on there. Hmmm. I try a few things and just now I unplugged the wireless router and lo and behold both a "default" and a "jackson" connection are still available. So I am thinking there is another wireless router that is pretty frigging powerful in one of my neighbors houses. Is there anything I can do and still retain the wireless shindig? Are they using my router/connection? Can they snoop around in my computer?

Thanks for any help. I'll be back on later tonight. For now, I am bypassing the router and unscrewing the antenna/disabling the router on this computer. Dammit!