A friend of mine just did a similiar thing to Gary's. I gave him a table type stand and he made a box to sit on it. Keyboard, wires, plugs, and a light go inside the box. The flat top allows him to put a computer or laptop ( or tip cup ) on there is he wants. I just got a two tier stand from Geekstands.com and the upper tier could be used for a computer if you put a shelf across the upper tier arms. Very inexpensive and well built. Unfortunaltly doesn't fold up for transport so its just for the studio.
_________________________
Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer