Hi John,
Personally, I moved to Firefox because of the pop-up blocker feature and found that it was a much better browser and I've never really used IE since to be honest, apart from the odd time where I've encountered a web page that will only load with IE.

Also I was having problems with IE constantly crashing when surfing the Net and I just got sick of it.

Funny you should mention un-installing IE, as far as I'm aware, you can't actually delete it from a Windows computer, it is part of the package.
I tried to do this once on one of my other computers and Windows seriously threw a wobbly.
I think this is also the case with Windows Media Player as well, but I haven't tried to delete that.