I am running the RT 20p as LR, a CS350 for center and a pair of RTi35 for the rears.

I am trying to decide if I should buy a new receiver in the next few months and then add an external amp later or buy the amp now and then a pre/pro later. My ultimate goal is to move to seperates and then eventually upgrade speakers.

I have been looking at the Onkyo 808, Marantz 6005, or the Denon 3311 for recievers. My Sony ES receiver does have pre outs for a new amp.