Still available on Amazon http://www.amazon.com/The-Sims-2-PC/dp/B00009WNZA and a fair few people have apparently found it on ebay. If you get the right customer service person you can still get the Ultimate Collection through Origin once you have a legit code. I got UC less than a week ago and I wasn't actually asked for a code, despite having one. Perhaps, it was on my records as having owned them? I'm not sure which Sims 2 game you say is only available on Mac, @WinMacSims3 I have only dealt with the PC side.
