Unlimited Data Plan

i was thinking on upgrading from prepaid phone that i have currently to a postpaid plan.

I love my current number as it reminds me of my missing handphone few years back. Changing to a new number would be too much since i have to update everybody in my list about the changes. at least, by using prepaid i could limit my usage, but in some other ways postpaid prevail. Prepaid doesn't provide any decent data plan sucks lot of prepaid top-up and since i have manage to get my working email directed to my PDA, unlimited data plan proves to be convenient. But the thing is, every data plan available were either pay as you use or unlimited plan. Unlimited plan doesn't include any voice plan and i have to add a voice plan to it. hmmm...