I successfully dual boot my windows 7 and snow leopard. But there are some problem that i still dont know how to solve it. Currently i'm using empire EFI cd to boot the snow leopard. I tried to use chameleon boot loader but still having a problem with memory allocation error. But what i dont understand is empire EFI is based on chameleon R3, but when i install chameleon R3 on my boot, it still giving me error. i guess my plist is wrong somewhere.
For now i have to make do with the cd method. Its a small price to pay for the mac in my machine.
By the way, here is my spec:
Acer aspire 4740G
Intel Core i5 430M
Nvidia 310M (i have to modify the kext in order to make it run. For those who are having a problem, try to update your plist with the proper device id and etc)
Intel HD audio (still cant make it run, i'll update once i able to make it run)
For those who are still having a problem, keep on trying, maybe some solution is not applicable for you and you have to find another solution. I've been working on this for 2 weeks already and finally it paid off.