I use the headphones 95% of the time...
Well, since having a proper amp was a NO-WAY option, I had to invest in some good headphones, so I went for the Sony MDR-7506, very light, compact + comfortable. I just snapped a pair of HD600 right in the middle, they were a bit tight so I was trying to loosen them a bit... I have to wait and see with a bit of luck I get them replaced/fixed thru warranty, they are nice to, but I prefer the 600 for composing or mixing. My complete setup/compact studio is simply/mainly a computer, a soundcard and a Bass Pod XT.