I'll have to clean up my office when I get a chance and put some pics up.
When we moved in, we agreed that I get free reign over the finished basement and Tammy gets the rest of the house.
My office is roughly 12x12 with one corner clipped a little by an angled wall. I also have about a 24x15 space that I could use for a studio, but I'm still figuring out the local ordinances and such for that.
Then there is my home theater in another area of the basement.