Our workflow is almost completely digital and we have as little to do with tape formats as possible. We are also likely to have a separate consumer grade surround speaker system in place for clients playing guitar hero, checking dvds etc. So the flexibility of an amp is kind of redundant – I’m assuming here that a good pair of active speakers is going to be better than/cost about the same as a mediocre amp and speaker combo.
We have numerous pairs of sennheiser HD25 headphones which are pretty good for reference.
The audio that really matters will invariably be going through a sound house. I’m looking for a pair of speakers that will give good performance relatively cheaply – something that can be relied upon to give an accurate portrayal of the audio and not sound too bad at the same time.