If you do not need a portable computer (i.e. a laptop) I think you could save at least half of the steem you have while still getting something powerful. Just look at second-hand workstations like the ones from HP and Lenovo. You will get a lot more bang for your buck and can still get a really powerful machine. The reason I recommend brand-name second-hand workstations is because they have been designed to last, all their components seem to be professional-grade and since a lot of companies upgrade their equipment pretty regularly, there are a lot of gems out there. Just make sure that you get something with a up-to-date Xeon CPU (or two :P).

The only real caveat of this route comes if you are an avid gamer as many games have not been optimized for the Xeon processors that much and can't really take full advantage of its power (those are more server and workstation grade CPUs which has a lot of upsides outside of gaming).

If you want to game, you would most probably be fine by simply selling the Nvidia Quadro card that those machines usually come with and replacing it with a more gamer oriented GPU. And since those workstations come with powerful power supplies and enough space to fit whatever you need inside.

I really hope this advice saves a part of the Steem Power that you have accumulated so far :)

Comment written from an HP Z700 workstation purchased second-hand at a bargain price :P