i need to buy a new telephone...i come from a worste samsung u700, and think about buying a blackberry.

i need these features :

- comfortable, durable, BURLY!!
- long life battery, and hogh capacity battery
- great rx
- comfortable for sms writing
- bluetooth
- sync with mac

these are the main important features i need ...

i saw these two models: pearl flip 8220 and curve 8520

waht your suggestions??

is the 8520 better than 8220 for my pourpose?
is the 8520 too big for carring?