Same boat.
Core 2 DUO E7300@2,67GHZ
4 GB DDR-2 800MHZ
Geforce 250 GT 1 GB
Due old CRT monitor limited to 1024x768 - 85 HZ (or 1280x1012 60 HZ).
SSAO Off
Nvidia Pre render 0 frames
AA X2
Vsync enabled
Model Detail - High
Buildings Detail - Med
Land Detail - Low
Forests - Very Low
Visual Effects - High
Texture Quality - High
Damage Decal - Medium
Buildings Amount - Low
Land Shading - Low
Grass - Off
Shadows - Off
Roads - On
FPS Counter = OFF <<<<<

And no low level flys over London - the game objetive is other.
Playable and enjoyable game. The only major problem (appart all know bugs) is when very next to enemy bombers my guns sometimes "freeze" or only fire in short burst.
Sokol1