Gatekeeper SOHO USB Personal Firewall

Protect up to five computers with 13 built-in security packages packed inside a small, palm-size,... Buy it:
$104.99 at ClubMac
Yoggie Security Systems Gatekeeper SOHO USB Per...

Protect up to five computers with 13 built-in security packages packed inside a small, palm-size,... Buy it:
$125.99 at MacMall
Gatekeeper SOHO USB Personal Firewall

Protect up to five computers with 13 built-in security packages packed inside a small, palm-size,... Buy it:
$104.99 at OnSale