I just bought the parts and built the following computer:
p4 3.0 HT socket 775
gigabyte 8I915p duo mobo
2 sticks of 256mb kingmaxx ram (yeah i know i know i should of got 2 512's)
nvidia 6600 PCI-X
120gb SATA
generic case
s/c keybouard mouse etc...
It all slotted together fine except for when...