I am running Fedora Core 4 and I am using what they supply for Internet browsing....
I keep my XP machines off the Internet as much as possible,,,,,
I spend NO TIME or MONEY for Security precautions!
Fedora has a built in Firewall!
I use Firefox Mozilla for Internet surfin'. It seems to work OK, but it crashes a lot on pop-up heavy sights like National Review Online and sometimes Drudge. Other than that it works fine. I might need to try Fedora ...