I just got a N1 from ebay, its a t-mo unlocked phone.

I currently have a droid on verizon, I know I can't put my N1 on verizon so I'm going to open a new plan for t-mo.

I am not worried about minutes or anything I really don't need them, all I want is unlimited data for the cheapest way possible.

I've heard of telling T-mo I have an older phone and changing the ATP settings using the 9.99 data. I would have to use the 500min plan at 39.99. So that puts me at 50 bucks a month. Anything I could possibly do to make it cheaper?

Thanks in advance!