I am sitting on a $299 credit with Cingular. I utilize both phone and email quite a bit, travel within the States and in the UK 6-8 weeks per year and need to communicate. I used a Vodaphone SIM in my Motorola 551 and do not desire to continue this method. So.....for email, phone and internet,
any suggestions.

I do perfer one handed mobility as I do far too much while driving. 3g will not help me much at home, but for travel, yes. to wi-fi on not to wi-fi?