digi, just wanted to make clear that, under NO circumstances, was I at all flaming you, but (here's that word, again) Microsoft. Sorry you had to see (read) my bad side.
But.....good news!!.......I've now woke up, had 3 cups of Joe (so far), and I'm MUCH better, now.
But in reality, if you're going to be developing a web site, you've GOT to have both browsers, as what looks like a perfect site to you in IE, might look like crap in FF (or visa-versa), as each browser interprets things differently, which could have a HUGE effect on sales with FF users. If the site don't look professional, well, we all know what happens there......customers leave.