I have a t450s running Ubuntu and it's awesome. Plan on buying a 16GB DIMM, obviously. I wish they'd add more slots for RAM. Also, get the option where you can

I have a t450s running Ubuntu and it's awesome. Plan on buying a 16GB DIMM, obviously. I wish they'd add more slots for RAM. Also, get the option where you can cram 3 SSDs into it. Then you can swap to "slow RAM" if you blow out the 20GB. Just a little 20-40GB slice of an SSD but it can save you a lot of hassle if you start to thrash while running simulations or merging huge tables or the like.