I am looking for a fairly cheap (Less than AU $400) but powerful computer that will run Mac OS X, Linux and Windows quickly -_-

Please tell me part names and details so that I can ask around in local shops. Also, newegg links are helpful

The parts I have:

• Case (Normal size)
• Power Supply (Its from 2006, Will it work on a new motherboard?)
• DVD Burner (Works with OS X)
• DVD Drive
• 80GB Sata Harddrive (Looking for something bigger)

The Specifications I would like (doesn't really matter though):

• A Motherboard With 8 USB Ports, 2 Sata, 2 IDE (The budget ones only have 1 IDE port), 2 Ram Slots, Graphics Card Slot and 2 PCI Card Slots (Intel-Socket 775: Gigabyte GA-EG31M-S2, Intel G31/LGA775/mATX)
• A Good CPU (Is a Core 2 Duo Good?) (Intel LGA 775: Intel® Core™ Duo E5200, 2.5Ghz/2MB CACHE/800FSB/LGA775)
• 2-4GB Ram DDR2 RAM: 2GB Generic, DDR2/PC6400/800Mhz
• 120-320GB Harddrive (3.5" SATA HDD: 320GB Seagate 'Barracuda' 7200.10 [ST3320620AS] - 16MB SATA II)
• Graphics Card (nVidea Preferably) (PCI Express - nVIDIA: Galaxy 7200GS 256MB 64-bit DDR2, [72SEE4HDFCXX])

Please note, I am in Australia so I can't buy from Newegg. If you know any good Australian stores (Sydney) or online shops tell me. (I don't mind if you link to newegg though)

Please post your suggestions

Can anyone help?

This should offer you some help:

http://www.infinitemac.com/f39/featu...ardware-t1318/

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 Mac OS X 10.6.4 Retail || Intel Core2 Duo E8200 2.66GHz || Gigabyte G31M-ES2L || GeForce 6600 GT 128MB || Realtek ALC883 Audio || Realtek RTL8169 LAN || Samsung SpinPoint F1 1TB HD || Sony Dual Layer IDE DVD RW DW-D22A || Apple Aluminium Keyboard || Mighty Mouse

 MacBook Pro || 2.4Ghz Core 2 Duo || 200Gb HD || 2Gb Ram || NVIDIA GeForce 8600M GT

 iPhone 4 || 16Gb