I have a new Powerbook G4 800 Mhz on the way (in fact it should be here Friday ), but I've read that there are a lot of security issues when using the Airport card on a wireless network. Now the campus here says that they have firewalls put into place, and that no problems have been reported, but the network is brand new and actually it is just being put into regular use. I'm just wondering how many Airport users out there have had any problems with security? If I think it is an issue, I'm thinking about getting a personal firewall. I read the recent Macworld and it named a few, but I was wondering what the best was? Would a personal firewall help? Thanks everyone.