hi,

i had the same problem...
the only way to finish the installation is to install the efi bootloader before installation...

0) boot from dvd

1) Partition your hdd and format

1.1) unmount your disk

2) go to the terminal and install the bootloader...
cd /usr/standalone/i386
./startupfiletool -v /dev/diskXsY ./boot_v8

2.1) mount the partition

3) install osx without any bootloader

after installation when you boot from hdd you got the blinking cursor or not, i dont know why... i think the problem is my extern usb hdd but installation finish... =)

when i boot with dvd (rd=diskXsY) the system boots up without any problems and runs very stable but without lan and sound, i have to wait for running kexts...

system...
m2n sli deluxe
amd x2 4600