Ah a subject I know a bit about
Sad as it is and I know I should get out more!!!
Ok I have had various versions of MS flight sims and with the spec you have I would suggest FS98 it has bags of features works very well, will accept a decent 3D graphics card ( worth having to get all the nice eye candy to work). On a set up like yours it should run pretty well, plus there are loads and loads of add-ons for Flightsim98 at free web sites like
www.avsim.com and
www.flightsim.com just search for FS98 in the file library.
If your need any further advice whack me an e-mail
[email protected] hope that helps.
As an extra FS98 can be had for as little as £1 on Ebay!!! never need to pay more than £10 for it anywhere.... the later versions of FS will cripple your computer and will look like a slide show...