What are the alternatives with the right price?
Right now, on peoples computers who run windows (I don't), I set up:
-Avast (Virus Scanner)
-Comodo (Firewall)
-Spybot Search and Destroy (Malware remover and it blocks malicious sites)
-CCleaner (Cleanup and it lets you disable auto-started services)
And anything but IE and Outlook if you can help it, and try OpenOffice instead of MS Office if you can. All of the above are free to use at home, and work well in my experience.