well, my total airhead amp is now broken so im looking for a good replacement amp , any help is appreciated

source will be a portable mp3 player , I dont want to spend more than ~$150 U.S. , any help is greatly appreciated

ive never owned a headphone amp before , but after reading posts on this site it seems id want one to power my headphones my price range is roughly $150 , and ill be using the amp for a portable mp3 player , any help is greatly appreciated

i've got about $200-250 to spend , i listen to mostly hiphop and rock music , any help would be greatly appreciated , if it's not too much trouble , a link to view the headsets would also be appreciated , thanks in advance