The Sony Grand Wega LCD's might be your best bet. I have read several reports from people who have them in bright rooms and have no issues. Daniel is right, a Sony rep a CES said the bulbs in these sets are good for 6000 hours. I think most local big box stores carry them you you can go and take a look and see if you like them.
"We are only immortal for a limited time." -Neal Peart