I was running a 2.3gig athlon with 512 ram and a ati 9200 128mg card and the game was a tad sluggish so i used the lite harbour mod. Added a 1 gig stick for christmas and the game plays quite well now without the lite harbor mod. Of course i did change my paging file from windows controlled to a permenant size and use Ken Saltars FS Autostart to free up memory years ago