I always am amazed at the price difference between packages.
Roughly $8k from the base model car to the 5.7 Hemi R/T, and another $10k from the Hemi to the SRT8 package.

SE 2-door coupe $21,820

R/T 2-door coupe $29,820

SRT8 2-door coupe $39,820
Price note: SRT8 adds $1751 Gas-Guzzler Tax