-Windows 7 Home Premium
-use the built-in firewall
-UAC on max
-in Windows public wireless network settings, besides the default settings, I have 1)set to block all media streaming, and 2)turned off public file sharing
-fully patched Windows, Office, Firefox, Flash Player, Java, etc, etc....everything
-I always make 100% sure I connect to the expected wifi and not someone's laptop tricking people into using it as a wifi.
-Whenever I log into a site I care about, I always log in using https. All of my email accounts (gmail) use https. I really don't care if anyone sees my websurfing (forum posts, google searches, etc).
First, not talking about my AV product and whether it would detect and stop malware that makes it onto my computer, but
1) what are the chances of malware getting onto my computer from the lan/wifi? (not asking about malware coming from email, websites, flash drives, etc. Only asking about what could come from the public lan/wifi)
Next, assuming no malware go onto my computer at all, what (and how great) is the danger to
2) my data on my computer (from being stolen or viewed)?
3) the sensitive data I transmit using https being seen or stolen and unencrypted?
I'm asking for real world ("in the wild") dangers at random free wifi like Starbuck's etc, but not white paper theory or methods that require skill or equipment extremely unlikely to be encountered.
btw, I know there are further steps I could take for better security than the ones I mentioned above, however, for now, I need to get an accurate, but not overly paranoid, picture of where I stand with my current set up. I'm hopeful there are people here that can give me perspective.