Do your bit to advance the web, don't USE IE. IE has been single handedly holding back web advancement for years now because it comes bundled with windows, IE 8 is only a slight improvement.
Its standards rendering is still pitiful, as proven by the acid tests. Its a resource HOG, and for all the resources its chewing up, it still is a pitifully slow browser (Firefox and Chrome eat their own share of resources, at least they actually do something with those resources and are blazing fast).
IE, even IE8 is still probably the single biggest security threat on your computer.
Final verdict:
Step 1. Upgrade to IE8 because its so tightly integrated into windows.
Step 2. Install Firefox / Chrome / Opera / Safara and use one of those instead.