Sadly, triple cranksets are becoming and endangered species. It's getting to the point where you can only find them on touring bikes, which brings your 30-pound weight and non-STI shifters in the deal.
The Jamis Bossanova meets your requirements but stretches the budget a little. The 2013 Kona Jake also fit the bill, but they moved to a compact double for the 2014 model.
Another option would be to get something with a double and have the shop swap it out for a triple before you take it home. That would open up your options a lot.