I'm in the market for some new headphones for music, gaming, and movie useage, though mostly music, from my laptop and my Total BitHead 2005. I listen to rock and metal (death, black, thrash, etc. ie: fast stuff), and some classical. I'm also a huge fan of the triple.fi's, and would like a...

I'm using a Total BitHead amp currently, with an ER4P with an S adaptor, and I'm contemplating seriously adding a beyerdynamic DT880. I realize there are better amps, but will there be any real problems with the BitHead driving the DT880s?

I realize this is a fairly odd comparison, but that's exactly why I need some help. So, I just bought some HD555's and I adore them. I don't yet own an amp, but I probably will soon. However, here's my dilemma: I already own some Etymotic ER6i's, which I also adore, and I'm pretty happy with...