Should I buy JR pass?

Hi all..
I'll go to Japan on this late November. I arrive at Kansai Airport and will leave from Tokyo Haneda Airport. Should I buy JR Pass? I'm planning to stay 2 nights in Osaka, 3 nights in Kyoto, and 2 nights in Tokyo.

It's my first trip to Japan, if i stay in Namba area, how can i get there from Kansai Airport?

Can you give recommendation which hotel is near to station? in Osaka Namba, Kyoto station area, and Shinjuku area.

Thank You..

7 day JR Pass : 28300yen
KIX - Osaka - Kyoto - Tokyo - NRT : 17700yen
K
KIX - Osaka - Kyoto - Tokyo & Nikko day trip - NRT : 28040yen
K

If you plan a day trip to Nikko or Hiroshima, JR Pass will cheaper than individual tickets.

No JR-Pass.

Flight Osaka(Kansai) - Tokyo(Narita) more convinent this Fall.
http://www.flypeach.com/narita.aspx?www_pc_en-us_mini_banner
http://www.flypeach.com/jp/ja-jp/narita.aspx?www_pc_ja-jp_mini_banner
3,790JPY (not include option fee/not all day)

General rule: 7 day JR Pass only pays off if you do a Tokyo/Osaka return trip.
www.hyperdia.com : this is your friend
Use Hyperdia to put in your trips and work out the costs.
Your itinerary does not seem to pay off with a pass