(11/07/2010 04:11 AM)S7* Wrote:  Sure but it depends on the websites visited.

Not really...

What's more important what you click and what you download.

If you're really worried about websites, you could always use something like noscript (Firefox Addon).  I don't personally use it though, I find it too annoying.

(11/07/2010 04:11 AM)S7* Wrote:  If you're gonna run an Antivirus then you may as well have a good one running.

I would just run the most light weight and unintrusive thing I can find, and not worry about detection rates.  These days I don't even get virus', never returned a positive in a long long time, so I could have just been running on nothing all that time.