I live in New Mexico (just east of Albuquerque in a pine forest) and can certify that it is a haven for creative artist types. The air is very dry most of the year, with just a bit of humidity in July-August when the monsoon rains arrive (but we love them!). We are self-employed, and our insurance at BCBS is half what we paid in CA for the same or a little better coverage (HSA, high deductible). The cost of living is lower all around. It's not a wealthy state, so there is a lot of pressure to keep costs down for housing, eating out, utilities etc. State taxes are 5% (less if you are at poverty level I think).
For good medical, stay close to the center of Albuquerque where all the big hospitals are (UNM, etc.). Most of the high-end galleries are in Santa Fe, but there are plenty of opportunities in ABQ as well and a decent gallery scene aimed at tourists in Old Town, Nob Hill, etc.
Taos is too far - 3.5 hr drive from ABQ. Santa Fe is more expensive all around, but I should think their health care is pretty extensive. And if your husband likes to hang with engineers, there's always Los Alamos(!).
You will def. need to stay out of the sun though, and at around 6000 ft it will take a few months to get used to the altitude if you are coming from sea level.