There are currently two pairs of headphones that we are considering. Our purchase is still months away, and we've got lots of time to agonize over the slightest details and faults, but the Sennheiser HD 800 are currently at the top of our short list.Sennheiser HD 800 These headphones aren't just for listening to music, but also watching media on your computer and home entertainment system. They reproduce the speaker-feel nicely, stopping you from feeling the "in ear" impression that most headphones give. The resulting sound is very clear and accurate. Unlike the Grado, the HD 800 will represent sound accurately. The Grados will make the music sound larger than life, which is good depending on what you do with them. While they are made out of plastic-like materials, they are comfortable and you'll be able to keep them on your ears for hours. Grado PS 1000 Slightly more expensive than the HD 800, the Grado Professional Series 1000 sell for around $1,700, making them the most expensive pair in this post. Instead of using space-age materials, this pair opts for traditional materials and design. Initially, they were a lot more expensive, but they have come down in price significantly, making them a viable alternative to the HD 800. The sound in the low end is a bit sharper compared to the HD 800s. The bass goes pretty deep, thanks to an astonishing frequency range 5 to 50,000Hz. The separation of the sound also allows you to perceive individual instruments. They'll work on an MP3 player, but if you're getting these, it's best to pair them with a valve headphone amplifier. Here are some more alternatives: the Denon AH-D7000, the Audio Technica ATH-W5000, the Beyerdynamic T1, and the Grado GS1000i.