Essentially what I am looking for is an amp that has a few different inputs, whether they be RCA or 1/8' stereo connectors. What I want to do is be able to run a few sources into it (like an iPod via an LOD and whatever else running through a DAC) and not have to unplug one of them to plug in...

Just a heads up that I am relatively new on the full sized cans side of this house. I have a decent amount of experience with IEMs, but I've never really had a setup that required an amp or anything like that. Essentially what I am trying to do is start with a headphone/DAC/amp setup that will...