My SMT 5600 died two week ago. This is an awesome little phone. Much better than the Cingular 2125, runs Windows Mobile, small and fast. And two weeks ago mine had a lovely while LCD screen. You could vaguely make out what was happening on screen which means the phone wasn't entirely dead. You could still make and take phone calls. Just don't try using the menus or looking up a contact. And, yup, out of warranty.
So..... off to eBay I go. Picked up a non-working model on the hope that the LCD was still good. Cost me $24 after shipping but turned out to be worth it. I used these excellent directions for disassembling the phone and it took me all of about 30 minutes to swap out the screens. Man was I happy to see color when I powered it on.