I think instead of blowing a bunch of time and money on an elevated work surface I'll just turn the heater on in my old workspace and set one of the shelves to the proper height. I'll get to stand while I work in a quiet well lit place with a window and it won't cost me a thing other than a buck or two extra on the ol' power bill. If we ever trade up our current living accommodations for something smaller, a geek desk or a custom workspace might make more sense.
Splitting up my workspace would allow me to segregate my projects which is something I've been thinking about doing for awhile. Having a place to spread out to concentrate on my visual work, a small cave-like place to write text/code and a well lit place to stand and work might be the ticket. I've got the space, I might as well use it. Lots of craftsmen have a special workspace depending on the type of work they are doing, I'm starting to see why.
I had questioned the merits of having multiple workspaces in the past as something that would not fit within the confines of my minimalist ambitions. When it comes to the work that fulfills us, minimalism should be practiced like every other contributing attribute...
...in moderation only.