is there anyway to get the core temps and such like on the rasp pi
Click the "monitor" tab. You'll see the temps and voltages for each die listed at the top. Note: You must be running our software on the RPI to see this. BTW: You also will not be able to get updates if you aren't running our image. If you don't have a "monitor" tab, you aren't running our recommended image.
-Phil
Only the HF versions of cgminer support viewing all 4 cores in console, but you can get the info via debug log on any cgminer version / OS:
You can enable debug logging via console (press d,d,space) or start up parameter (--debug) and then you see the cores temps, it's board temps, and their voltage fly by on screen from time to time (I think it's enough time to read them)
Edit: You can also find other interesting bits in there, for example when the board is throttling due to temperature, serial number, etc.