That looks like a pretty decent system. There is a guide for FSX at the top of the FSX forum here. Note that not everything in some of the older guides is applicable these days, especially when it comes to Windows. In fact, for the most part, I would suggest just leaving Windows itself alone.

Quote Originally Posted by TerryB View Post
I am as yet undecided regarding downloading or buying the boxed version, but I am leaning to the boxed version at the moment.
Forgot to mention previously that you will still need to download the updates that have come out since the sim was released, which at this point is going to be pretty much the same size as downloading the sim from scratch. The box edition at this point is best thought of as more of a collector's item for those that want to have something sitting on the shelf. It also requires you to keep the first disc in the drive while flying too.