I'm looking forward to SimCity 4. I had and loved Sim City 2000, but never did bother to purchase 3000. It looks like they have made lots of improvement to the GUI, and the graphics in general. They've also allowed you to import you families from The Sims into this game. Although I don't know if this is so much a big feature as it is a way to grab The Sims people into buying this game. I'm very much looking forward to the new personalization options, along with being able to have more interaction with the cities around yours instead of a simple screen that tells you their population, worth, and how much better or worse they're doing than you. You can even import your friends city as a neighboring city and play against each other.