Motorola V551 / V330 / V547 / V555 / V557

i am currently an mpx220 owner and keep having major issues with this very expensive phone. the cingular guys suggested i try the v551. my main goal in going to a smartphone is combining my cell phone and my pda. i use outlook for everything and would need to have access to this info on the v551. also, i need to be able to surf the web and check my e-mail. anyone else out there in the same boat and have suggestions?