I'm actually in just about the same situation as you, with the same references. I had AKG K 26 Ps for my daily (loud) bus ride, I lost them, I got a pair of Grado SR-60s (with bowl pads, so they were effectively Grado SR-80s) and they broke on the bus (not to mention the lack isolation made me kill my ears to listen to them).
I looked around, and what I'm getting is the Audio-Technica ATH-ES7 with the HPP5 case. They should be coming in a week or so, so if you haven't decided by then, I'll give you a full comparison of the ES7s to both the AKGs and the Grados (though it can't be side-by-side, as I don't have either of them anymore).