Blaza's Build: Core i5-3570K - GA-Z77-DS3H - 4GB RAM (16/32) - HD6670 Components Apple Mac OS X version 10.6 Snow Leopard http://www.amazon.com/gp/product/B001AMHWP8/ Apple OS X Mountain Lion 10.8.2 @ Mac Apps Store https://itunes.apple.com/us/app/os-x-mountain-lion/id537386512?mt=12 Gigabyte GA-Z77-DS3H Z77 LGA 1155 Intel Dual UEFI BIOS ATX Motherboard http://www.amazon.com/dp/B007R21JWC/ Intel Core i5-3570K Quad-Core Processor 3.4 GHz 4 Core LGA 1155 - BX80637I53570K http://www.amazon.com/dp/B007SZ0E1K/ Sapphire Radeon HD6670 1GB DDR5 HDMI/DVI/VGA PCI-Express Graphics Card 100326-2L http://www.amazon.com/dp/B005C2NEZO/ Kingston HyperX 3K 120 GB SATA III 2.5-Inch 6.0 Gb/s Solid State Drive SH103S3/120G http://www.amazon.com/dp/B007R67FNA/ Cooler Master Hyper TX3 - CPU Cooler with 3 Direct Contact Heat Pipes (RR-910-HTX3-G1) http://www.amazon.com/dp/B0028Y4S9K/ Already Owned Western Digital Caviar Blue 500 GB SATA III 7200 RPM 16 MB Cache Bulk/OEM Desktop Hard Drive - WD5000AAKX http://www.amazon.com/dp/B00461G3MS/ Western Digital 640 GB Caviar Black SATA 3 Gb/s 7200 RPM 32 MB Cache Bulk/OEM Desktop Hard Drive - WD6401AALS http://www.amazon.com/dp/B001GQYYSQ/ Viewsonic VX2753MH-LED 27-Inch LED Monitor - Black http://http://www.amazon.com/dp/B004KCI80I/ Apple Wireless Keyboard A1016 http://www.amazon.com/dp/B0000DBJ8A/ Microsoft Optical Wireless Mouse FCC C3KMS9 MSI Bluetooth Btoes 2.0 XMicro USB Adapter http://www.msi.com/product/mm/Btoes-2-0-XMicro.html Chieftec Smart Series GPS-350EB-101A - Power supply ( internal ) - ATX12V 2.0 - AC 115/230 V - 350 Watt http://www.amazon.co.uk/dp/B000OZ0ID0/ Chieftec Smart Series SG-01B Case http://www.amazon.com/dp/B0000DBJ8A/ Patriot Signature 4 GB PC3-10600 (1333 MHz) DDR3 Desktop Memory PSD34G13332 http://www.amazon.com/dp/B003GSLDJ0/ Comments: Everything is extremely quiet & work like a charm. The things I will changed are Power Supply and Microsoft Optical Wireless Mouse. The case is a bit cramped, but actually works quite well for what I have. I am still waiting postal delivery with my: fans (two NF-B9 PWM & one NF-P12 PWM), case dust filters and 32Gb DDR3 RAM Memory. The MSI bluetooth adapter identifies as OS X built-in (Cambridge Silicon Radio) so you can use the System Preferences pane for Bluetooth. No issues, for now! Apple keyboard A1016 hands down the best keyboard I've ever used! I built this machine from my preowned components and about $400. MultiBeast Configuration for Mountain Lion 10.8.2 Comments: I was using UniBeast and MultiBeast & KextBeast after instalation. Installation was finished with Intel HD4000 and than I just return ATI 6670 back, and everything was OK. Otherwise you will facing problem with white screen and nothing except moveable mouse pointer on your screen! Edit Log EDIT: No.001 One more picture More Pictures... EDIT: No.002 13.nov.2012. HWMonitor v2.3.19 HWMonitor displays on your menu bar your CPU and HDD temperature, and system voltages. EDIT: No.003 13.nov.2012. It's 16Gb 1600MHz DDR3 RAM Now (waiting for 16Gb more...) Kingston ValueRAM 8 GB 1600MHz DDR3 (PC3-12800) Non-ECC CL11 DIMM Motherboard Memory (KVR16N11/8) http://amzn.com/B0089JIDLC/ Also, CPU cooler Cooler Master Hyper TX3 is return to store, and replace by Noctua Ultra Silent CPU Cooler Cooling NH-U9B SE2 I also change org.chameleon.Boot.plist New settings are GraphicsEnabler=Yes and AtiConfig=Ipomoea This new settings are much better for my Sapphire Radeon EDIT: No.004 17.nov.2012. Sapphire HD6670 DDR5 has been sold. New graphics card in my H(M)ac is MSI GTX 650 PE OC. Because of that I edit org.chameleon.Boot.plist and change "GraphicsEnabler" from "Yes" to "No" and delete "AtiConfig=Ipomoea" Also, Chieftec 350W Power Supply is replaced by ThermalTake Purepower RX 600w.