Yeah, I would ignore it myself, as you have good cooling. Do you have stock heatsink with the thermalpad/nice thin layer of thermal compound covering the cpu?
My cpu used to read 12*C as idle temps for a while, but my BIOS was corrupt a few days later, so that was probally just the bios going dodgy. If you are worried about it, then you can get a thermal probe to go onto the heatsink and tell you the real temps (it would be a couple of degrees above, due to it not being dirrectly on the core.
Don't bother getting the pci coolers, they are only half good at cooling video cards.
btw. haxer, look at your sig, you put bg instead of gb.
Cisco CCNA, Comptia A+, 1/3 through CCNP