Picked up a refurbished Sansa Fuze on woot today, and I've been looking into amplifiers to use with it. I'm looking for something portable, but something I really don't like is when there's a large mismatch between the size of the DAP and the amp when they're stacked. that said, I'm looking for a portable amp that's slightly bigger than the fuze and will stack with it well. I currently own a headroom bithead, but I feel like it's a bit too big to to use with the relatively diminutive fuze. I was looking at the iBasso D4 and the T3 as well, though the T3 seems a little too small (but it's super portable) as well as the FiiO E7.