I recently had the misfortune to break my car key (the casing) and to my anger and dismay toyota could not supply me with a new one. They put me in touch with a company who could supply me but at the price of £160!!!!! Which I couldn't afford, so after lots of phone calls, research and emails I finally found a supplier and the new key cost me just £10 + postage and packaging. So if anyone has the same problem as me or can see there car key rapidly deteriorating then message me - the company I brought it from are not retailers so I can't put the details online but I am happy to help anyone with the same prob. as me.
I would say this is more of a tip than a deal so sorry if i offend anyone by posting this here.