VIRUS AND DUAL BOOT

I am new to linux. I am running suse 8.2 pro. I am running a dual boot with windows me. I use the linux for 99% of the time. I use kmail for all emailings. My question is with this set up, if a virus is sent to me can it seek out windows? Or since linux is running it will not work? And what anti virus do you folks think is the best to use? I get lots of emails as being the webmaster. I got hit with a virus a while back while running stright windows. Thanks.