Somewoman!! (warning, minor hijack) Tell me HOW!! Do you know how to do that? Have you done it? Can you do that indoors?
LOL! =)))

I haven't done one yet myself - waiting for our house to be built (but we will have one as soon as we're there!!). It's one of my first planned projects =) And yes, you can do it indoors if you have an appropriate location for your plants of choice

you can do a web search on vertical herb garden and it will return heaps of results and images. A good one to look at for inspiration is The Garden Gurus - TV: Gardening Channel - in the "soil and improvement" section you will find vertical herb garden - they give a basic description of how to put one together. You don't need to do it as big as what they have (and you could also change the shape according to the area that you have), but it gives an idea on how to get it going.

You could also do it using different materials - both in construction or in growing medium (soil versus rockwool, etc). Some people make them partitioned into sections for each plant, but the partitions need to allow water to pass through if you want to use a pump to create a reticulated watering system in it.

If you're handy, it really wouldn't take much! Once you have the basic thought and design in your head you can go from there =) Would love to see what you do if you decide to make one! =)