I need advice before trying to sell my 2-month-old Cingular 8125. It works perfectly fine but I do not like the design and would rather buy a smaller phone and use my Palm as a PDA. The phone is currently locked for Cingular. My question is: When I sell the phone, can I keep the SIM chip? Do people expect to provide their own SIM chips when they buy these phones? Is it difficult for someone to get this phone "unlocked" if they don't want to use Cingular service? Any other advice before I sell? Thanks!