This article reviews different standing desk options for the home as opposed to office.
It contains some good points but overlooks one important factor:
Regardless of whether you are working from home or an office you are NOT going to go from sitting all day to standing all day....
Absolutely all the science tells us that the benefit comes from alternating between the two and a fixed standing desk is not going to do it for you if you want these benefits.
Read the article yourself but keep the above in mind http://www.huffingtonpost.com/entry/standing-desks-for-your-home-office_us_59ca9d38e4b0d0b254c4e7fa