[isdnmatt]

If you're willing to go with 700 minutes. It'll only cost $160 +taxes/fees with your wife.
Don't know if it's cheaper, but you can get familyshare select 700 ($99.99) + 2x email and web for smartphone ($29.99).

I get a 20% discount with either Sprint or Verizon, but Verizon service has been very good to me. I think you can get 5% just for AAA. Verizon has been great with swapping devices, making international phone calls for diagnosis, waiving fees, etc.