Home on a Saturday night. Z is a bloody evil language; a recurring theme with languages I've had to learn for my CS degree, it seems. Distraction-wise, Technosphere has a certain something: build your own creature (carnivore or herbivore), set it loose into a terrain populated with other creature created by other users of the site, and see how it survives: will it get eaten, or defend itself? The creatures look pretty funky, if somewhat Dali-esque. You can take a look at my creatures, apologies in advance for those names :-)
Also, The Sims, after a rocky start for me, is clearly the most addictive game, ever. Hoo boy.