I've played with OpenBSD on a VM a couple times and really liked it, but I'd like to use it on real hardware and try and force myself to use it as my main personal system at least for a while as an experiment.

I've often heard that Thinkpads make great OpenBSD laptops. Are there any models in particular the HN crowd would recommend? In terms of my hardware needs, I don't really care about graphics like you'd get with an Nvidia card, but I do need wi-fi since it'd be really hard to set up a wired connection to my router in my current apartment.