It's an NF3 150 chipset, FYI.
I love these little machines. I have two i845 chipset ones and have also used an i865 chipset ones.
One thing to keep in mind is that the CPU socket is usually under the HDD/optical cage, which limits your choices in HSFs. Still, they make a very compact and stylish HTPC/multi-media case, or a nice LAN gamer.