I got a 520 with quad core i7. I had to swap the motherboard with integrated nvidia for the normal non nvidia motherboard to get dual monitor support under linu

I got a 520 with quad core i7. I had to swap the motherboard with integrated nvidia for the normal non nvidia motherboard to get dual monitor support under linux. But other than that, I got quad core and 16gb of ram. I think this will last me until 2020 or so. (or at least I hope so) Can't stand lenovo's latest offerings with offset keyboards with a number pad. Though looks like this 460 has a normal enough keyboard. That might be an option, just has a smaller screen :/