I want to know if I get "sony ericsson W960i", If it will work good with cingular

I want to know if I get "sony ericsson W960i", If it will work good with cingular

company? http://www.sonyericsson.com/cws/products/mobilephones/overview/w960i

Better Phone is Nokia N 95 or Blackberry Curve, i have both, are the best, the provider AT&T.

Yes,But your Sony Ericsson W960i phone should be unlocked one.If it's locked by other than Cingular network means,you will need to unlock your phone.For unlocking you can approach your service provider or else try to buy an unlocking service from any one of the online unlocking service provider like MobileUnlockSolutions.com Here you can unlock your phone at low cost.