Quote Originally Posted by Jeffrey N
I assume you mean that i get a separate amp to drive the three front speakers.
Exactly or at the very least, your two mains for 2 channel stereo.

Incidentally, I find that I have difficulty imagining how to connect or wire things up. For example, I will probably need a manual with illustrations that a four year old can understand to teach me how to bi amp my speakers.
You're not going to bi-amp. Many receivers have pre-outs on the back allowing you to bypass the receivers amps for an out-board or separate amp. All you do is the amp into the receiver and have the speaker leads run out of the new attached amp. However, as your Yammie is pretty well outdated from a processing standpoint, you're going to want to ebay it anyway.

Now Rotel does talk about a separate Pre-amplifier/Processor as an option. Maybe I will look into that. But will I have to buy a separate Tuner, if I go with the Pre/Pro? And will I be able to incorporate my old Yamaha in the setup? Maybe I can use its Tuner?
Welcome to the wonderful world of separates. The advantages are that you can pick and choose whatever you want for a pre/pro, amp, tuner, etc. and it will usually sound much better than any receiver could hope to, even the big monsters like the Denon 5805 or Yammie Z9. The downside is that separates can get real expensive, real fast. If you get a pre/pro & amp combo, you will need to get a tuner (which is cheap). I have no idea if you can use the tuner section of your old Yammie although I doubt it. You're better off selling it and applying the proceeds towards a decent tuner. Another option is to buy a cheaper receiver ($300) like a Yammie 1400 on close-out which has all of the latest decoding as well as YPAO (room eq) and then pairing it with a nice 5 channel Rotel amp using the pre-outs. Now you have all of the decoding, a tuner, auto-eq, and decent amplification. It won't sound as good as a dedicated pre-pro nor will it be upgradeable, but it is an option.

Hope this helps.