I think "NINJA PLUS Rev.B" CPU Cooler is vest! because it is cheap and powerful.
but It is big. so I don't know can your mobo installation this cooler.
Apropos, In Japan it's about $35. but In US, It is $54@Scythe official web site→http://www.scythe-usa.com/product/cpu/026/scnj1100p.html