this wat I think iz gd ones:
Best Firewall:
1.ZoneAlarm Pro
2.Outpost Firewall Pro

Best Anti/Spyware
1.Spyware doctor
2.Spy Sweeper

Best Privacy:
1.Privacy Guardian
2.Ciber Scrub

Read this aswell:
http://safari.oreilly.com/0672327279/ch08lev1sec3

hope tht helpd
ave funz

|d4x