i have just built a new gaming rig and its been fine but i have noticed temps up a little in places. so im thinking of changing a few things in there and making it a little better on the cooling situation. currently the cpu is using a stock cooler, after reading some good reviews i was thinking of fitting a scythe mugen 2 cooler on the cpu on the corsair ram fitting an Corsair Airflow Dual-Channel Fan on the sli gfx cards fitting Akasa AK-VC05 Freedom Force Graphics Card Cooler's and on gfx ram some Zalman ZM-RHS1 Silent VGA RAM Heatsink Kit now as for thermal paste which is better? the tried and trusted Arctic Silver 5 or the new Arctic Cooling MX-3 ? i dont mind buying a tube of both to try them out. what i noticed today was while playing assasins creed 2 on max settings , after a while the fans were going like crazy! so closed to game and loaded up cpuid monitor and the one gpu was at 59/60c the second was at 47/48c the cores were within safe limits however i noticed that TMPIN2 was at 110c i have not overclocked this in anyway, its running at stock, the bios is the latest, i have the latest directx, gfx and sli drivers. in the bios cool and quiet is running and i havent changed any settings in the bios other than boot sequence. heres my setup info. NZXT M59 case MSI NF750-G55 SLI AM3 motherboard 2 GB Coarsair DDR3 1333 ram 2X NVIDIA 9600GT 1GB GFX cards in sli mode 1X AMD PHENOM 11 X4 955 black edition with stock cooler 5 x various sata drives 250/500gig 1x sata dvd-r 2x samsung syncmaster 2023nw screens and a saitek cyborg keyboard and mouse. if anyone else has any other suggestions please let me know here is a picture of the rig as it stands at the moment , i still have to finish my cable tidy up.