Okay, here are some logs.
I've come so far with the netBIOS packets so that I know that it's being sent from the mac in the house, to my xbox 360. The 192.168.137.1 is my xbox, in the first log 192.168.1.34 is the mac. Since the router change IP adresses when you connect again I had to compare MAC adresses in the second log, but I think that 192.168.1.33 in the second log is the mac again.
I've also been getting this from time to time.
32 02/09/2010 21:43:47 Packet without a NAT table entry blocked: ICMP(type:5, code:1) 188.8.131.52 184.108.40.206 ACCESS BLOCK
Both are IPs from around Hollad or something. No idea why they are in my router.
Is there even a need for anti virus on a mac? I think that the other computers have anti-virus, but you never know, we've had some run-ins with spy-ware that really screwed up our internet, so you'd think they would've learned to use it anyway.
I've been talking to some other fellas on some other forums but none really seem to know what's really going on with my network