Lol, true. So I did and I finally found the right chipset driver. Voila! Boots with iPC.
However, now it's randomly having KPs on Apple services (iCal Helper, Software Update, etc). May be due to using the Voodoo kernel. Can someone suggest a more-P4-friendly alternative, pretty please?

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Custom Hackintosh...AMD Athlon X2 5000+ (2.6 GHz) on GA-MA78GM-S2H...Linksys WMP300n Wireless...ALC889a sound...ATI HD 3650 PCIe...1 GB DDR2 RAM...320GB Western Digital SATA + 200GB Seagate IDE HDD...Rosewill DVD-RW IDE...Running Kalyway upgraded to 10.5.7...All Fully Functional