Thanks for the software suggestions.
Do I really need a firewall? I know the companies say I do but.. I use Norton AntiVirus 2003 with automatic update and keep Auto-Protect running all the time - except when I install a new program - learned about that the hard way :) - and it looks as though you check mail for viruses before sending.
If I install a firewall, will it affect anything else, for instance my dial-up or ftp connections? (Your link to ZoneAlarm went straight to the download page but I couldn't fond much on their site by way of FAQs)

