yes, I would say that those temperature are a bit hot. but if they're not climbing on a regular basis (the Idle ones), then I think you're okay for now. I would try and add some additional fan or fans to help cool the system, because as long as the case of your box isn't large, those temps might be because of the parts being squeezed together and venting hot air all the time in the same place and there is no compensating mechanism, well, at least not strong enough apparently.