Hi, for the sake of comparison, I have an E7300 OCed to 2.9Ghz (the same frequency yours runs at). Idle temps are currently:
CPU 31C, Core 0 & 1, 43C
And after a session of gaming, typically it is around 10C more.
This is using stock cooling, (silent mode) and read by SpeedFan. I'm guessing your temperatures should be very similar.