Using stereo and 5.1 receivers on same speakers?

I hope this doesn't sound like too much a dumb question/scenario. I have a Peachtree Audio Decco connected to two Totem Mites for my main 2 channel listening pleasure. The Decco is connected to an AppleTV and a CD Player. I would like to experience a 5.1 system as well for bluray and dvd's. Would it make sense to use the Totem's as the front pair for a 5.1 setup or to buy a separate 5.1 setup (I was thinking of Mirage Nanosats for a very small room). If I kept the totems I would want to be able to connect to the Decco for 2 channel listening and a 5.1 receiver (say a Denon 1610) for surround sound. I am assuming the Decco is better than a cheaper surround receiver for 2 channel dedicated listening. Any thoughts on this? I guess I would have to keep plugging the speakers into different receivers in this scenario. Unless there is some easier way.