<3 the Plantronics model 90
Yes! I use this one too. Its great, but it feels like you're wearing earmuffs. The phones pivot to the position of your ears so you don't get that awkward pain when you take them off after a long game, however the connection between the phones and the actual headset seems a bit cheap and it feels like it doesn't take much for it to just fall off.
The cord doesn't twist! Had a problem with that with my old one...had to keep pulling it apart (futiley) to get some more slack. the most vulnerable spots where the wires are bound to break are protected somewhat by a flexible plastic that gives slightly so chances of the wire being cut from use. The 'remote' is simple and sleek with volume control and mute. It also comes with a small clip which to can attach anywhere on the wire, and clip it on your shirt or whatnot.
Between the 'remote' are two wires: a long one from the remote to the mic and phone connection, and a smaller cord from the 'remote' to the actual headset. The wires are quite long, and you probably won't be using all of it unless you plan to be moving around. The split between the mic plug and the sound plug is quite long when compared to other headsets.
The Mic sounds clear (though not the clearest i've heard ever), and does not pick up small background noises. It can be set straight up or as low as slightly below your lips. The arm hold the mic itself is very flexible, but sturdy when it needs to hold the mic in place.
The size is, of course, adjustable. What surprised me was a rubber lining across the top of the headset. Your head never really touches the top of the headset, instead the rubber strip contorts to your head. Feels awkward at first, but confortable when you're not thinking about it.
Some bad things are that if your ears get really hot during gaming, the pads around the ears can get hot (although it hasn't been a problem for me), but are confortable if you don't have this problem. the wire connecting the jacks and the earphones themselves are tucked somewhat safely in, but in reality is exposed and a small accident could land you with a dead headset. Again, it looks and feels like you're wearing earmuffs: you could take on a canadian winter with that thing.
$39.99 CAD, which works out to be 50 bucks including tax. One Year Warranty.