hi, i am a pc/mac user and need a new computer by end of this year. I will need it to tackle a few various tasks. I edit and render HD videos for youtube so i needs to be optimized for that as well playback of 1080p mkv smoothly. I dont know much about hackintosh installation so i want to know will it run as smooth and efficient as a retail iMac or Mac Pro. i am thinking of something along the lines of core i5/i7, ati 5770 or 6850, 4 gb ram, 1tb hdd. my price max is $1200AUD except shipping. also i need a shop the delivers to Australia.