guys, really need your advice here..

in the midst of buying desire, but dont know which network to choose from yet. im a maxis postpaid customer with 50:50 usage rate btween calls and data eventhough not signed up for data plan. got some questions in my head now whether to stick with maxis or change to digi...

a) is maxis 1.5g data plan enough for moderate network usage? +apps installation, news and probably some downloading
b) is digi unlimited plan really worth it? speed-wise? connectivity-wise? read some bad comments on their customer service though
c) anyone here using desire with digi unlimited? if so, how was it?
d) should i really need to consider changing to digi then?

help guys...! before i head to LYP and buy one!

also a new desire owner here! yet to use it coz dont hv case yet. only bought screen protector at sunway pyramid last nite.
going to LY tomorrow to get case, car charger and 8gb SD card. anybody can advise on which shop could offer good prices? and at what price is that?

anybody with success using this method? just got my desire for 3 days and still blurry on how to root.