I was going to suggest an Eleiko bar as they were clearing out demo ones. I picked one up for $580 shipped.
There is a pretty noticeable difference between a 28mm bar and a 29mm bar. I have a DHS training bar (28mm), a B&R bar (29mm) and now an Eleiko training bar (28mm). I am by no means good at the quick lifts but I've noticed a huge difference using the two 28mm bars over the B&R bar or whatever bar I've gotten stuck warming up with at my gym before competitions, which is usually some beat to crap Rogue crossfit bar.