Handlebar suggestions please

[CAMRAMan]

I have On One Mary bars on my mountain bike. I like them, but the shape of the curves greatly limits the amount of stuff I can squeeze onto the bars. What I'm after is something a little less extreme but with a certain degree of rise and less swept-backness. I don't want flat, or only slightly raised bars - I already tried those and went for the Marys. I throw the question of what I should consider open to the panel...
I have a couple of stems in the box to allow for any reach adjustments, I hope. 31.8mm, I should add.

[Bolt]

If you're happy with the Marys then an extender such as this may be the solution http://r.ebay.com/HYjTIQ?

I have this set up on many of my bikes and typically use a longer mounting tube made up from plastic electrical conduit.  Here's the setup on the Genetic Zygote bars on my Inbred.

[CAMRAMan]

Thanks, but the Marys’ curves hamper putting extra bits on them. I thought about an extender, but would prefer bars with more usable space.

[Bolt]

How about ergotec space bars?  http://bikeshed.johnhoogstrate.nl/bicycle/handlebar/ergotec_space/

[Pedaldog.]

Alpkit Confuscius?

[CAMRAMan]

Food for thought, thanks...