Hope everyone has recovered from Summit 2004!

Regarding the question of full-spectrum lighting for the workroom: www.buylighting.com advises anyone interested in replacing old fluorescent tubes with full-spectrum tubes to check the old tube for a number ["on the end, probably starts with 'F'"].

You may call them directly with this information: 1-888-990-9933. I have found them to be extremely helpful and prompt, and recommend them highly.