I can't give you any advice on the Masters CS degree (other then that I think some sort of CS background would be really useful), but career-wise - have you con

I can't give you any advice on the Masters CS degree (other then that I think some sort of CS background would be really useful), but career-wise - have you considered sticking to architecture and follow a more tech path? There are some great opportunities in the internal research labs of the more cutting edge firms to develop software. Off the top of my head: P+W (where I work), Norman Foster, Thornton Tomasetti's Core studio, AECOM, SOM, Zaha. Have you checked out some of the big computational conferences/symposiums like ACADIA, AEC Hackathon & Symposium, SmartGeometry? Perhaps you've already checked out the field out and still want to switch, but if not, I think you'll (a) find a lot of like-minded people and (b) find a lot of meaningful work in the field that needs computational expertise. That latter point is what's most important to me: issues like building/urban energy consumption, affordable/dense housing are low-hanging fruit that are being done in manual/non-optimal ways right now. You can email me if you'd like to talk.