Hi DayDaemon,
Thank you for the compliment
As per the onboard graphics, I only used to during the set up process because the 9 series cards are not natively supported. Once I installed the web drivers and switched over I disabled the on board graphics and the system uses the nvidia graphics card.
Your card (according to my very quick google search, I could be wrong and you may benefit from further research) looks like it will also need web drivers to work as well as possible. No need to be intimidated by any of this though!
As I mentioned in my first post just before the build part, I was intimidated by the whole process required to build a hackintosh, but I found as I read more about it, familiarized myself with terminology and procedures, read build guides, etc, it put a lot of my concerns to rest. My biggest piece of advice to share is to take your time, read read read, and if anything confuses you, ask about it. This website has a TREMENDOUS amount of information on it, answers the just about everything hackintosh related can be found, and if not, the people here are wonderful and will try their best to help you figure it out.
As per your DSDT free issues, before you get too far into setting your machine up I suggest you start from scratch again and make sure CPU states is unchecked, and nullcpumanagement is also unchecked. That should solve the issue.
The motherboard flashing scared me a bit too, but it really is pretty simple and a good thing to do. Boot into your BIOS and look at the version your MB is working with, as you said hopefully its up to date, but if its not you can do it! The little section I put in about motherboard flashing has a link with in-depth details of how to do it, and while it seems complicated, as you go through the process you'll see its fairly straight forward. You've made it this far, you can do it!
Having all your components hooked up is fine, no need to fret on any of that. This build was done with everything hooked up as well.
If you have any further questions or concerns please feel free to share them, and I'll get back to you as quickly as possible.