Ankesh,

I vote for my Good ol' Ergonomic chair and a Lazy Boy Recliner all hooked into my Wireless Laptop systems.

But the Ball option sounds interesting...

Some Quick misc. info...

http://www.postureball.com/
http://ergonomenon.wordpress.com/200...onomic-or-not/
http://ergonomenon.wordpress.com/tag...and-furniture/
http://ehs.unc.edu/workplace_safety/.../office2.shtml

Phil