I'm "one of those", who can use both Mac and Windows with no problem. (Mac preferred, and I only do windows if it's Win2K and up.) I've never had a problem with this forum while using Safari, or Firefox.
Use the update feature in Firefox. Nice, cool method to make sure you're up do date. This is important, regardless of platform.
On the windows side, I use Firefox, or IE with all the active X controls diabled. ( options menu, security tab, advanced. )
Good book for Windows users: "Windows XP Inside out" by Ed Bott, Craig Stinson, and Carl Seichert. (Microsoft Press). This is truly indispensable. It's in paperback now, about twenty five bucks at Amazon.