WraithApe
Headphoneus Supremus
Just wanted to chip in to say that I owned a pair of T1s for quite some time - if you're a bit of a treble-head, I don't think you can go wrong really: the level of treble detail, and actually detail across the spectrum, is impressive, as well as its imaging and resolution. It's still one of my favourite headphones in fact, just that personally I find the treble a bit too hot too handle. As Youth said, I'd add the HD800 to your short-list (although it might be a bit over-budget unless you get used or find a great deal online) - announcement of the HD800S is interesting. The second generation of the T1 has arrived too: http://www.head-fi.org/t/776332/new-beyerdynamic-t1-2nd-generation. As well as adding a detachable cable, which is a fundamental improvement IMO, Beyer are claiming this new generation smooths out the top end somewhat, as that did seem to be the main complaint with the original T1 - people go to great lengths to try and 'tame the treble' with all kinds of DAC/amp combos (particularly tube amps) and mods, when perhaps they would just be better off with another headphone!
I was also pretty impressed with Audeze's EL-8 OB when demoing it - smooth but detailed, relatively open-sounding (though not to the degree of the T1 or HD800) with a decent amount of slam - excellent build quality. I don't think it's quite in the same league as the LCD-X personally, but then it's considerably less expensive. Worth trying, if you can find it on demo anywhere.
I was also pretty impressed with Audeze's EL-8 OB when demoing it - smooth but detailed, relatively open-sounding (though not to the degree of the T1 or HD800) with a decent amount of slam - excellent build quality. I don't think it's quite in the same league as the LCD-X personally, but then it's considerably less expensive. Worth trying, if you can find it on demo anywhere.