I find the Z1000s to be warmer sounding than the SRH840s, and they have a soundstage that's more deep than wide. They might be a bit hit-and-miss for your needs. Ultrasones have good imaging if the S-Logic works for you, but they're not very warm sounding. Another headphone you should definitely consider is the Denon D5000.
You could consider the AKG K550. From what I've heard, they might just be what you're looking for. Take that with a grain of salt, though, since they're new and hardly anyone (including myself) had heard them yet.
Stay classy, my fellow Head-Fier.
There's a huge chance I'll be buying the K550 when they're readily available. I expect I'll be buying a headphone a month for the coming few months to find that perfect closed can that will give me the sig I need.