its important to get a firewall, coz due to e horrendously buggy framework of windows, once an exploit is discovered, its easy for a 'script-kiddie' to force an open port on your comp and send command(s) to screw it up, not to mention e ICMP packets(nuking) and stuff.
some ppl take it a step further and get both hardware and software firewall, i onli use software though, no $$.
eh..i dun like the norton firewall, v de 'da jing xiao guai' wan. and not all so called 'intrusions' are realli intrusions, mostly is juz 'internet chatter', u noe, pings and such.
Firewalls i recommend:
1. Kerio
2. Sygate
3. Zonealarm
4. Tiny
i think for ppl who have lower-end comps, sygate will work betta coz it consumes less system resources. basically, its not a one-size-fits-all thing, u juz gotta try some and see which works best for you.
cheers.
