Changing sides: From Thuban to i5-2500K

After over 10 years using AMD platforms, I have stepped across to the other side. After the recent let down of BD, I opted for an i5-2500K on a Gigabyte board. I'm in the early stages of transferring components but managed to sneak in some FSXMark11 tests. At 3.6GHz this system gives a 10fps increase (31%) over the 3.8ghz 6-core Thuban it is replacing! Minimums are 4-5fps higher also...think I'm gonna like this.Update: Now running smoothly and without much effort at 4.0Ghz, the upgrade was pretty easy and only required reactivating Windows/FSX. I now am coming to understand what so many of you have been enjoying for so long. The X-Plane demo is looking better as well. One question: I transferred my Noctua U9B SE2 heatsink /fan over and have idle/no load temps at 38C-40C, FSX temps mid 50's-low 60's. Seems a bit high to me...but any input would be great! Thanks.