If I install a router will I need a firewall like exemple zone alarm

Yes to control out going.

LilJoe

It depends on how paranoid worried you are about security.

Behind every good computer... is a jumble of wires 'n stuff.

Yes.

Shelly

I don't run it.....Though with today's computers i doubt it will affect the speed much and sure why not run it...

Yes. Absolutely YES. Zone Alarm, Sygate Personal Firewall (discontinued but still available and still good), or whatever you choose. Plus an Anti-virus program of your choosing. And use Spyware Blaster, too. But heed this: Use only ONE AV program, and only ONE software firewall program.

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Desktop: WXPPro SP3; Core2Duo/2.6; 2Gb RAM; Firefox 3; Avira Free; OnlineArmor Firewall; Linksys-G WiFi
Laptop: HP Pavilion dv2845se; Windows 7; AMD Turion 64; 4 GB RAM; Avira Free; Firefox 3

Neither do I ... to be honest, I never could get it to work.