Almost there with my new set up now:
M2NC51-AR (HematiteXL)
Sempron 1.8GHz
160GB Seagate Momentus 2.5" SATA II HDD
Hiper 1U case

However, slight problem with the HSF. After much searching, went for the Dynatron C51. However, I now realise on going to assemble that I do not have the right HSF bracket.

Anyone know where I can get this non-standard bracket from? See mobo picture Can't post URLs yet here:
Enter "M2NC51-AR" in google and it's the first result, scroll down for a pic