It depends what type of things you want to cool, the XSPC kits come with a good starting level and lots of spare tube all you need is to the the extra cooling plates you want. http://www.xs-pc.com/
CPU - AMD Phenom II 555 OC'd and UCC'd to Phenom II B55 at 3709MHz RAM - 16GB Kingston HyperX Beast MoBo - ASRock 890GX Extreme3 GPU - Asus HD 6850 Direct CU SDD - 240GB Kingston HyperX