Lookin FWD to hearing what you end up with, and how it performs etc.
I re-built my machine over the weekend with a bunch of new bits (m/b: ASUS P5K-SE, cpu: Intel E8400 Core2 Duo 3Ghz, ram: 2x1GB Kingston 800MHz, video: 512MB ASUS/Nvidia EN9600GT). Last night got all the WindowsXP patches applied and re-installed FS9 and all the add-ons I could face reconfiguring to have an initial play.
Before now my old machine was creaking along lucky to make 18-20fps with all the sliders at medium to low, and lots of awkward pauses especially at busier airports with lots of AI and ground detail.
After the upgrade I was totally blown away, I mean I know its not FSX stuff, but the difference was amazing compared to my old rig. All the weather, clouds, texture, effects, reflections and traffic sliders etc are set to max and with it locked at 25fps I haven't once seen it drop below. The only thing that seems to affect the rendered quality is the depth-perception slider which I've left at a medium kinda setting, oh and I tend to leave the water effects set a little lower anyway.
Its so bloody good I actually started to get a bit of motion-sickness ( there goes any real-world flying ambitions

) I'm either gonna have to ramp it down a little or hang a couple of sick-bags off the back of my chair
Now all I gotta do is install Photoshop for her-indoors to use (which was the "selling point" for the upgade

)
Gidday Deeknow, nothing beats simming in high FPS to the point where you need a sick bag, well done! Who cares what it is as long as it works for you dude.