Hey Adam,
This is my favorite audio-related website:
www.audioasylum.com
You can certainly "use" all of your gear in your new space as separate systems, but I don't think you'll be able to use your separate amp and preamp together with your surround receiver. Without knowing more about your gear in terms of specific inputs and outputs, I can't determine whether or not you can piggy-back stuff together.
You should be albe to patch your iPOD into either your preamp or your receiver w/o any problem.
If you don't want two separate systems, you may be able to consolidate most of your gear. Assuming your JVC receiver has pre-amp outputs, you could connect your 2 channel amp to power your front L & R speakers and use your PSB's. Then you could use the built-in amp section of your receiver to power the rest of your surround bookshelf speakers.
Your 2 channel pre-amp would not be used in this setup, nor would your existing front HT bookshelf speakers. But everything else would be preserved.
PM me if you want to talk more.
~mat