How do you pick names for your Sims?

I usually just go with a name from the top of my head, though this is often tailored according to the house's makeup and the feel I'm wanting to go for. I often give a family or a neighborhood an ethnic feel, using all English or all Italian or all Arab names. (I have to use the internet for the latter, of course...I know a few because of my city's Arabic, Pakistani, and Bangladeshi immigration populations, but not THAT many.)