I have a little verizon phone, but I am looking for phone (pda, blackberry, etc) to be able to go online and look up prices of items on ebay, amazon, half.com etc. and to be able to enter my ebay and do every as with a regular computer. What is the best type of phone, etc? For verizon? And if i were to buy it on ebay. how do i transfer my service from my current phone to the new one/?

thank you