Streaming music thru Apple TV or digital player

Are you limited to memory sticks or could you use a USB hard drive?

I have a 500 gig drive.

What brand of reclocker?

I have the first generation Apple TV, which has an internal hard drive. I feed the signal to the Benchmark DAC1 Pre via an AudioQuest OptiLink 5 Toslink cable. Other cheap Toslking cables I tried made the sound flat and thin.

I sold my Krell CD player after this.

I have 2 of the 2nd generation and find them convenient for streaming movies and Internet radio and sound quite good. That being said, keep in mind they resample audio to 48kHz unlike the Bryston. Although I haven't heard the Bryston I understand it's in another league altogether (at a significantly higher price).