I love my little clip.  It is so small it fits anywhere (It fits perfectly in the free space of the case of with whatever cans I am bringing with me that day), my only complaint is the headphone jack and some QC issues.  My first one the jack lost a channel in less than a month, luckily it was under best-buy's warranty, and I was able to get it replaced at the store, unfortunatly the second one did not have a working SD card slot, so back to the store where I returned it for #3.  I now keep the little source cable with the right angle connector...

Love it.  Perfect size.  Attached it with velcro to the back of my Sansa Clip Zip, and can almost forget it is there. I reccomend it to anyone needing a small amp or who are just getting into headphone amps to start with.

I love these for when I want to enjoy my music, especially for rock.  Added the L-Cush pads on mine, which I find opens them up a bit more and improves comfort as well.  Best bang for buck cans, and a bargin at ~$100

Some of my favorite cans.  I love them for work, and wear them 8+ hours a day when we are recording sound on set.  Stock pads kinda suck, but if you put the Beyerdynamic pads on them, you will never want to take them off.