Get firefox.
Not a fan.
I'm trying out Opera right now, Its pretty legit!
I actually use Opera but hear great things about firefox.
What I would say about Opera is, it's very good but seems to have trouble handling some features of websites that work well on IE. So sometimes opera makes a website look wrong.
There are also some seriously cool mouse binds on Opera that I keep discovering almost by accident. E.g. clicking the right button then the left button very fast moves the browser back to the last page. (This might happen on IE too, for all I know, but I never noticed).