I made a little fix for the sims 2 for mac a while ago.
I AM ASSUMING YOU BOUGHT THE GAME, OR ELSE I WILL NOT BE WILLING TO HELP. Please understand. Thanks. heh.
http://umich.nawcom.com/Sims_2_no-cd_fix.dmg
Inside this are 3 things, the Sims 2 1.0 for Mac v.E Update, The CD-Fixer to let you run the Sims 2 without the CD, and a small utility script I wrote. Install the update first, then run the Fixer. If the fixer immediately crashes, then it has to do with shared links with some libraries. Thats what the utility is for. just double click on that, and follow the instructions. Then rerun the Fixer - it works now? it should. Let me know if this helps you out there, I know its helped other people with the same issue.
(Note to mods: since this is a patch for a legally owned game that he needs help with, am i violating any rules? Ive checked rules and posted it on another mac forum site just fine, and i went through the rules here to verify. Let me know if i am violating rules and
i will take the link down. I don't want to be banned, so I hope you can understand my seriousness in this. I am not promoting use of pirated material, nor linking pirated material.)