Classic British Flight Sim

i've just booted norton internet security from the pc (i wow at the start up times now) and have replaced it with nod32 from eset - which is pretty impressive as an antivirus but i'm not even sure if it has a firewall - i presume it doesn't as i cannot find any options for it or word 'firewall' so i'm looking for something i can control program access etc with.

i've been reccommended comodo or netveda - but you guys know best what is the best, least intrusive, lightest free firewall?

links:
http://www.personalfirewall.comodo.com/
http://www.netveda.com/consumer/safetynet.htm

(yes i know i want it all, but i know it's out there!)

Microsoft has a pretty good FW installed with XP sp2....

I know NOD32is superb. Charlie Bravo put me onto Comodo and TBH its very good - for free anyway!

SP2 does have a firewall built in. Seems ok for me but others may beg to differ.