Hi, I have several questions that some of you might be able to help me with: 1. Will a phone with a legacy AT&T Wireless SIM card have the same coverage as the same phone with a Cingular SIM card? 2. Does Cingular or T-Mobile provide better GSM 1900 coverage in the San Francisco Bay Area? I am assuming that their 1900 networks are different. 3. If you lived in the SF Bay Area, would you pay a couple hundred dollars for a GSM 900/1800/1900 handset you really lusted for to use on your Cingular account with legacy AT&T SIM card? or would you sign a one-year T-Mobile contract and get that phone for free? (If the answer to number 2 is T-Mobile, then disregard this question as the answer is obvious ) 4. Am I correct in assuming that I'll get the best coverage with a quad-band handset on a Cingular account? The reason why I ask is because my girlfriend is currently a Cingular customer (legacy AT&T), and she really wants the Nokia 6111, which is a tri-band GSM 900/1800/1900 handset. I told her to get a Cingular quad-band phone and be done with it, but Cingular doesn't offer any handsets she likes. I've read some of the recent threads relating to this topic, and I wasn't clear on a few issues. Thanks in advance!