Football Manager is pretty demanding on a desktop these days as it is - well, if you play the 3D version, anyway. I remember when I upgraded to Windows 7 it just wouldn't play in 3D mode smoothly for a while so I switched to 2D and never looked back for months. Finally decided to check things out again and my players in 3D surprised me with how extreme they were - all of them were either massive well-built 6'4" players or tiny skinny 5'6" players (basically fullbacks and wingers!). It was weird.