Thanks Erin! It was DIY to a large extent, but my father-in-law finished the basement for us and built the room based on my design and specs. I did everything else. I also had help on the front stage from a good friend of mine. I think it's better to do as much yourself as you can, especially the wiring and setup, because you'll be the one troubleshooting it down the road.
If you want to see more on the construction, I have lots of pics
here from the original build thread.
What else.. the lighting is controlled by an automation program called HomeSeer (which the iPad touchscreen also interfaces with) and the switches are Insteon Switchlinc. They can do wireless via zwave, but my system is talking to them using x10 through the powerlines. I set up scenes in HomeSeer for movie, tv etc.
For the IR stuff, I have a device called a USBUIRT (you should be able to google it) that is connected to the automation server and I can "learn" all of my different remote commands right into the HomeSeer software which then can be accessed by the iPad App.
Good luck on your build btw, I spent what feels like a year figuring out all of the details so I can relate! Please let me know if I can help answer any questions you have--I'd be happy to.
-TK