Hi bonsai,
Ideally reducing them in size is the best thing to do - but at the same time I'd rather you post an oversized chart than no chart at all - not sure what others think? What would be the ideal situation? If the image starts to stretch the page, then rather than show it, provide a link to a pop-up window to display it. I think it's when it stretches the window and it become difficult to read the text on the page that it becomes a problem.
So, I'll increase it those 24 pixels.. but if you can crop it in a paint package, then great!
Paul.