The pronlem with the Sprint plan is that you are locked in for 18 months.
Also the 5 cent rate is 7 days a week, evenings only. That means on Saturday and Sunday, calls made during the day are charged at the higher day rate.
Originally posted by MRLIMO:
Explore all options, of course. MCI was recently offering 5,000 miles (1,000 miles per month for five months).
Another possibility is:
Earn up to 20,000 Bonus Miles with SprintŪ
http://www.nwa.com/features/campaign-sprint.shtml
Good luck!