These numbers come from a combo of NFL.com, Scout.com and PFT.com. I haven't yet run across to an actual link to the post, but these are the numbers for putting either the Franchise or Transition tag on a player.
The quarterback franchise number is $14.65 million and the transition figure is $12.44 million. The wide receiver franchise number is $9.88 million and the transition figure is $8.39 million. The offensive line franchise number is $8.45 million and the transition figure is $7.74 million. The running back franchise number is $6.62 million and the transition figure is $5.92 million. The tight end franchise number is $4.46 million and the transition figure is $4.07 million. The defensive end franchise number is $8.99 million and the transition figure is $7.78 million. The defensive tackle franchise number is $6.06 million and the transition figure is $5.45 million. The linebacker franchise number is $8.3 million and the transition figure is $7.48 million. The safety franchise number is $6.34 million and the transition figure is $5.13 million. The cornerback franchise number is $9.96 million and the transition figure is $8.37 million. And the franchise number for a punter/kicker is $2.48 million and $2.26 million for a transition figure.