Are there good quality headphones (both ears) that work with cellphone, computer and iPod?

I’d like to have *one* headset/headphones. I don’t mind if they’re over the head, around the head, with a boom, whatever, as long as they sound good and work for everything, even if they require an adapter.

Everything means:
Cellphone 2.5mm
iPod (standard headphone jack)
Computer (standard headphone jack + standard mic jack) OR USB

OR all bluetooth.

Thanks!

What is the absolute best (and by best I mean cheap) cellphone plan without going prepaid?

My mom owns a cellphone, and she has Cingular.

I really just want a cellphone to text on but apparently you cant get a cellphone and just have a plan where you text, you have to own minutes

SO! What is the best TEXTING PLAN, and PHONE PLAN!
I’ll rareyl use the minutes, but I’ll destory my kpad from texting way too much. Whats the best way to not burn a whole in my pocket without giving up texting