Jesus i would get a nervous brakedown if i would have to wait longer then 5 min. for loading the game. NYGM takes 3min and GWX 4min loading a saved game average plus 30s if im in a convoy/harbor. One reason for this speed might be that i have 6 GB RAM and a 8800gtx installed enough for any smod to run it without virtual RAM.
When i still had xp and only 1.5 gigs using a 2ndairy HD for virtual ram i noticed that during the loading procedures of WAC which requires 2.34GB RAM the game accessed this extra HD to perhaps load or write parts of game from/to there.