Fotiman - 8:21 pm on Mar 23, 2010 (gmt 0)

Well, nothing beats Firebug for debugging, which is why I choose to test against Firefox first. Plus, as I said, I don't get any Opera users... it just doesn't have enough market share for me to worry about it that much. I would be more likely to explicitly support IE6 than I would Opera, simply because it still has more market share (not that there's anything wrong with Opera).