I have two 560 TIs running SLI and only when I have them stress tested for over 6 hours do they ever get close to even 65c ... I would double check your airflow in your case because soemthing isnt right if you are gaming and those are your temps.
i got my pc side opened to see if it's the airflow, still the temp is still 80 degrees when playing games even though the side panels are already open. Here is the link of my gpu http://www.afox-corp.com/en/products_details.asp?proid=101