I'm looking to you guys for advice on what's the "recommended" upgrade for a sim like FSX. I'm NOT looking for an end-all-be-all upgrade advice; instead, I'm looking to create a system that can at least run FSX with about 25-30 FPS with most sliders set to about 3/4 of the way [or close to it].
The components I'm planning to buy my rig are:
Motherboard
Processor
Ram
Graphics Card [I prefer NVIDIA cards]
Hard Drive
My current rig is rather big, and by big I mean it's the size of my torso [and my torso is impessive enough to become a chick magnet].

EDIT:
Oh, I forgot to mention that I'm also planning on buying a new PSU.