Debugging Websites in Internet Explorer

Question

I have a Website that is really slow and "feels" really bad when using it. The server is fine, it's a clientside issue, I assume because too much JavaScript or Image Requests, but since it's not my own Website, I wonder if there is a way to show and profile the Page from within IE.

In Firefox, I would use Firebug, Y!Slow and the Web Developer extention to see all JavaScript, CSS, Images and other Requests, AJAX Requests etc., but on IE I did not see any problem. I know I could use Firefox, but the page works better in FF than in IE, so i wonder if there is some Development Addon specifically in IE.

Edit: Thanks for the many suggestions! Too many good answers to pick one as "accepted", but i'll have a look at the various tools suggested.

Answer 1

There is the Internet Explorer Web Developer Toolbar. It isn't as good as Firebug IMHO, but it works.

IE8 will ship with one built-in, too.