I know the GB crew has committed you to making Sid Meier's Sim Golf 2, but I would like to make a plea for Sid Meier's Railroads 2. Fuck Ryan Davis! Sid Meier's Railroads 2! :) Gosh this game is still great.
For anyone who may be interested in revisiting this great game, it's working fine for me in Win7. Run in XP Compatibility mode and then run a tool to add the LARGE_ADDRESS_AWARE header to the executable (http://smrsimple.com/2009/12/play-larger-maps-3gb-enabler). Runs like a champ.