keep it simple would be a place to begin coming from an apt dweller myself. Umm depending on how quickly you'd like to reap the real benefits of some of the amazingly constructed gear out there you may want to pay close attention to the listening environments acoustic capabilities. Tell ya what, If your new to all of this try and purchase a book "The complete guide to high-end audio" by Robert Harley.
I'm going to read through it once again
I'm going to read through it once again