My PC Probe II is reporting the MB Temp to be 47 C on idle, whereas my CPU temps are ~32-39 on idle (on stock fan). PC Probe also seems to give a warning for my Power 1 fan which seems to spin at 788rpm. Is this some kind of a problem, or is it normal for this setup to have this temp. Thanks.

What Jack said, Those temps are fine using PCProbeII

Thank you, good to know there is no problem. =)