Hear, hear! While Microsoft's market tactics aren't exactly kosher, they do have some talented programmers working for them. Really, Internet Explorer is a great browser. In my opinion, it blew by Netscape at release 3.0 when support for OLE was added; however, that also opened the door for nastiness.
Really, a decent virus scanner and some common sense (i.e. when a dancing monkey says "click here," *don't* click there) is all it takes to keep your system clean. In my ten short years of Intel system support, the nastiest outbreak I've seen was the Monkey boot sector virus, spread primarily through floppy disks. The reason why it spread? We didn't have virus scanners installed on every system.
EDIT: For reference, I used to use McAfee VirusScan but recently switched to Trend Micro PC-cillin (installed in bare bones mode) because it's free to employees of the company I work for. Both products work great. McAfee NetShield and Trend Micro ServerProtect are great products as well. Norton Anti-virus was crap (it didn't actually stop or clean anything, it just let you know when your system was infected, after which Norton/Symantec would publish a cleaning utility), but the most recent releases from Symantec seem pretty solid.
Trev