A variety of adverts are getting infected on various sites.
Here's a Linux-friendly area if you are curious. Some folks at SFT are moving faster than others in dedicated Linux forums!
Shop Floor Talk
You have many options other than Windows for surfing, and can run Windows either dual-boot or in a virtual machine (the safest way, period, to run Windows!) on a Windows or Linux host.
You just said what I ALWAYS tell everybody, esp. apple lovers. They always brag to me about how they have "best system" and "immune to viruses". I just tell them - thats because you are in the minority group of computer users.
Unix file permissions and operating system design aren't "security by obscurity" and assertions to the contrary are misinformed.
Windows is nice for getting me barter goods and pocket money fixing trashed systems, so it's not all bad. :thumbsup:
If you run Windows in a VM on a Windows host, you can set a Virtualbox snapshot and immediately revert to a clean installation. Virtual PC has similar options:
Snapshots in Virtual PC?
If you download the free VMWare player and a browsing "appliance" you can browse using a virtual Firefox on a virtual instance of Linux.
http://www.vmware.com/products/player/
http://www.vmware.com/appliances/directory/80
Sample other operating systems:
http://www.vmware.com/appliances/directory/
I don't get paid to fix my own computers, so I only run Windows where I need an application or tool that's specific to that OS. I make sure I have sufficient backups that any PC I own can die without it mattering much. It's easy to learn how to do these things, the internet has all the resources you need.