I have the same initial problem alphaman had "the apple loading sign upon a successful install yet it just keeps spinning and nothing else happens". Actually, i only get the loading sign when i type "cpus=1" when i boot and if i do a straight boot, then i would just get a grey apple with a white background with no loading. When i flag -v on startup to see where i get "hung up" it stops at "MAC Framework successfully initialized using 16384 buffer headers and 4096 cluster IO buffer headers". Could you guys PLEASE help me out! I'm using the Kalyway 10.5.2 DVD. Specs:

80GB Serial ATA hard drive
4GB DDR3 SDRAM 1333 (PC3 10666)
ASUS P5Q3 Motherboard LGA 775
Intel Core 2 Quad CPU Q6600 @ 2.4GHz
NVIDIA GeForce GTX 260 video card with 896MB
D-Link WDA-1320 IEEE 802.11b/g
Realtek HD Audio