I was writing a blog post on a myeclipse bug (is this really a bug?) and saw that the code I was trying to display on my blog was not rendering correctly. Part of the code got hidden and the formatting of the entire page looked really bad. I have seen websites which show code boxes which show code in their blogs.. so started my search for a good plugin. I found WP-CodeBox and have loved it so far. Go to the WP-CodeBox home page for details. You can see it in action
here.