Answers

Horchow is a high-end home goods line. They have everything from furniture to flatware. As I understand it, they are online/catalog only.  www.horchow.com

It really would depend on the size of the system, but to rough in surround sound shouldn't be more than around $1500. In regards to security systems, most of them are wireless these days and don't have to be pre-wired into the house. I hope that helps give you an idea of what you're looking at.

I agree - we would need to know more about the layout of your home to provide an answer. Some questions for you:

1. Is your bedroom above a garage or below an attic (as Marian noted below)?
2. How far from the furnace/heat pump source is the bedroom?  The further the conditioned air travels the harder it is for it to maintain its original temperature, particularly through metal.
3. Assuming your ducts are metal, are they lined or wrapped at all? It isn't likely that they are as it isn't standard construction practice to do so. Wrapping is something you may want to consider if you can get to the ducts without tearing into walls/ceiling.
4. It would help to know what part of the country you are in.  Heat pumps work best in moderate climates. If you are in an area that gets quite cold you may need to supplement your system. 

I hope you enjoy your new home and I look forward to hearing more about your issue.