I also came over from Verizon last month from Verizon to AT&T.
My first bill was $145.
That was for the last 3 days in June and all of July.
I have 450 mins, 2GB data, 1500 texts for a base rate of $80/month. Add on the 3 day pro-ration, $36 activation, and all the taxes, it adds up quick.