I remember now where I got the Brahma style bars, they came off of an old exercise bike that I was junking out.

In the picture is an aluminum bar with up-turned ends that I'm planning on using one day. I think the ends are bent to accept barend/barcon shifters. I just haven't found the right bike to use them on yet. Showing you to give some possible ideas to consider.

The Brahma style bar is steel and measures about 52-54cm at the center of the bar in the middle of the bends.

The final one is a Soma Urban Pursuit and measures around 42-45 wide. You might look at what Soma offers since the riding position of the pursuit bars might replicate what you are getting with the Brahma's on your bike now.
http://www.somafab.com/parts/handlebar
http://www.somafab.com/archives/prod...suit-handlebar

You might also check into the funky looking but functional Butterfly style trekking bars that some folks really like.
http://sheldonbrown.com/harris/handlebars/index.html
http://www.commutebybike.com/2011/05...ther-comforts/
http://www.wallbike.com/kalloy/handl...fly-handlebars

Hope this helps some.

Mike