Your log looks very clean to me. :) The files you mentioned are normal and all 2000/2003/XP users have them. As far I know, these are the places where the different registry hives for each user are...

Hello bbb2k4life,

before someone else digs with you into malware checking...

This sounds like a hardware malfunction: Is there summer where you live, too? Is it hot? That often causes computers...