'Can't figure out the right question to enter at MSKB.

My first always-on experience has me wondering if I've done
enough to protect the computer. XPpro SP2 connected to a
wireless network that is not secure. For years I've been
using the following, always dial-up:

eTrust antivirus, Zone Alarm firewall, two accounts that
have secure passwords and administrative privileges,
periodic off-line scan by Ad-Aware.

For an always-on, unsecure wireless network, is there
anything else I should do?

--David