Well, I haven't heard any compelling testimonial in favor of a modern ergo type bar. So I'm pretty sure I'll just keep the bars I've got....

however if I was going to be nit picky I probably could use a wider bar, I'm fairly broad shouldered and I suspect that among other things a wider bar might help me open up the collar bones and roll my shoulders away form the neck a bit to prevent neck fatigue. I could also use a little more real estate around the stem for my bar bag,computer, compass & inline brake levers as well.