Misto

I've heard great things about the Focal Twin 6 BEs, if that's your sort of budget? I'm a big fan of Genelecs, you can match with a subwoofer depending on your needs...

If its just for tracking, you need closed back headphones, nothing too fancy - the main thing is keeping the sound from leaking. Sennheiser HD25s are pretty much standard for this in many studios. I have a few pairs. But You don't have to spend 100 bucks, you could use something cheaper. Spend the money when you're buying headphones for mixing. These will be open back, and will have a clear natural sound. Take a look at the Sennehiser HD650s. They're lovely!