8800GTX TRI SLI temps???????????

my question is that curently i have an SLI system with q6600 @ 3ghz cpu installed in it.curently idle temps for my 2 x 8800 GTX are 57C & 60C and it can go to 80C & 82C in heavy gaming like crysis..both fans on 8800GTX cards are on 100% speed and my case have five 120mm fans.my cpu q6600@3ghz idle temp is 35C and it can go to 45C under heavy load!!! my question is that what will be my idle temps of my gpus if i put third 8800GTX to my system to make it tri SLI????
i mean what will be the idle temps of all three cards and load temps !!! my system is not watercooled all is on AIR!!! i am living in germany and you know its too cold out here and my room temps are little hot but when i open my rooms window so the 8800 gtx temps drops 50C % 54C respectively of both graphic cards in idle state because when i open my window cool air comes inside and cpu temps goes down from 35C to 28C in idle so my question..........!
if i add 3rd 8800gtx to my system to make TRI SLI what idle and load temps i shall expect from my all three gpu and qq660@ 3GHZ all on air..??? my system specs are:--

q6600 overclocked @ 3GHz 1.256V
cpu fan:- cnps9700
2 x XFX 8800 gtx overclocked @ 630/1000
4 GB OCZ DDR2 SLI Ram @ 900 2.15V
1 x DVD RW
1 x floppy drive
1 x 320 GB Sata western digital hard disk
corsair TX-850 PSU