Not to take any sides in this argument, but a work machine may also be running applications in the background that are large and will help bog down a machine on any platform.
And the Explorer argument is a misunderstanding. will: you're talking about
Internet Explorer, which is the web browser available for both platforms. Microsoft also has Explorer which is their equivalent to the Mac's file browser.
Let's try to keep this civil gentlemen.
And Jess: that is freakin' sweet!