I rent planes based on an hourly basis. All hourly costs include full fuel. Remember in most instances instruction is compounded on top of the hourly fee. I live in Omaha, NE and fly out of Council Bluffs, IA.
Here are the hourly rates from Advanced Air Council Bluffs:
Cessna 150: $67/hour
Cessna 172: ranges from $73 to $106/hour (rates include the age of the aircraft, as well as the equipment in the aircraft i.e. gps, autopilot, etc.)
I do not have the information for the rates for private pilot instruction. However, the rates for instrument instruction is $33/hour. An educated guess would put private pilot instruction at around $25/hour. So for an hour of instruction with airplane would cost around $110-$140...depending on the aircraft. In order for you to get your license, Part 61, you will probably log anywhere from 40-70 hours.
Also, you may want to look into whether Part 61 or Part 141 training is suited for you. Part 61 and 141 all lead to a private pilot license, they just take a little different path to get to the same result. In short, Part 61 requires more flight time, but involves a lot less paperwork. Part 141 requires less flight time, but is a lot more strict about logging ground instruction and documenting other aspects. Part 141 involves a series of stage checks. It is somewhat complicated and confusing, so I'll stop there. Wherever you train be sure to inquire about part 61 and 141 training.
Good luck, keep us updated on your progress.