iMac Won't Turn On!

27" i5 iMac Won't Turn On !!!

Hello,

I am a photographer and a documentary film maker. I use Apple for my projects. Now I have a major problem with my Apple imac 27 i5.

I was unloading a file last night to the internet using my Apple when apparently the imac went to sleep and after that we lost power for about 30 minutes. The next day when I woke up, my computer was not turning-on. When I try to push the power button, I hear the disk and the hard drive, but the screen remains black.

I tried the Apple recommendation like:

Resetting the System Management Controller (SMC), or

Resetting PRAM and NVRAM, or

Remove and reinstall the SO-DIMM memory modules

but I still face the same problem. Are you able to help me to resolve this problem? Another problem I have is that, I am living and working in a country called Tajikistan and I am not able to take it to any Apple store since we do not have one here! And to mail it in beside the huge expense, it takes almost 3 months before I get my computer back. I work with this system daily and I can not go without my pc for that long. Also I have all of my projects and profiles saved on the desk-top which I need. Please help me to solve this problem.

Best regards,

Artin