There are difference setups possible: The one with minimum requirements or one which working is fun. But these are more expensive.
I think today is an Intel setups better, they're coming closer to real Macs than AMD machines. But I'm also using an Socket 939 AMD processors and they're working perfectly. In the actual Macs are nVidia cards, the Mac Pro's will soon get the ATI Radeon HD4870 or HD4870 X2. These things are monstrous fast, but are getting very hot and need up to 300W power. I'm using an ATI Radeon HD2600XT, it costs between 20-50 Euro on ebay and needs only 50W. It supports Dual-Monitor up to 2048x1536 and TV-Out. There are various passive versions out there, so they have no loud fan.
If you want to use Maya and Final Cut you need large fast harddisks (I can recommend the Samsung HD103UJ, it's very fast, quiet and stays cool) and a lot of RAM. You also will need high-resolution monitors, if you want to use HDTV 1080p resolutions you need one or two with 1920x1080 resolution. The HD2600XT is able to display these modes. And of course you need a fast cpu and a lot of RAM.
If you want to do it absolutely professional you need a low-latency audio device. Onboard soundcards are often bad in quality and have possibly a fixed sampling rate of 48 kHz. I'm using professional M-Audio cards. There's the USB Transit card which supports recording and playback up to 96 kHz, S/PDIF in and out and an optical AC-3 output. A little bigger is the M-Audio ProFire 610. This thing has 6 inputs and 10 outputs (two channels each are coaxial S/PDIF) and is supports sampling rates up to 192 kHz, that's high definition audio quality. The thing has 8 fully independent analogue outputs, so you can route the ouputs manually to a 7.1 surround sound set. Both audio devices are coming with special Mac drivers, especially the ProFire has very complex routing settings. The ProFire 610 also has a MIDI interface and an inbuilt 2-channel microphone amplifier with optional 48V phantom power.
These would be my tips for additional things, but I can't tell you anything about an Intel/nVidia mainboard setup, I'm an AMD/ATI-only geek.  Another method would be to search for a suitable laptop which has one or more eSATA ports so you can connect fast external harddisks. But the laptops gfx cards are often worse and it's more difficult to find drivers for it.
2 Opteron systems: OSx86 10.5.8, Andy's 9.8.0 kernel, Asus A8N-SLI Premium, Opteron 185 o'clocked @ 2 x 2,95 GHz (2nd system 2.6 GHz), ATI Radeon HD2600XT 256MB Dual-Monitor 2x HP L2035, 4 GB RAM, Griffin FireWave as main audio device, Marvell + nForce LAN, Asus U3S6 USB3/SATA6 card, 5,5 TB harddisk, Firewire 800 card, Apple Remote + eHome IR receiver, 2x Wacom serial graphics tablet, Canon Pixma iP4700, Logitech Internet Navigator wireless keyboard/mouse combination.
My Audio stuff: M-Audio Transit USB (default audio), M-Audio ProFire 610, M-Audio ProFire Lightbridge (34 channels) using Creamware A16 ADAT converter • MIDI: M-Audio Midiman 4x MIDI interface • Behringer Audio Mixers: Xenyx 1002, Xenyx 1002FX, Xenyx 1202FX, Eurorack UB1002FX, Eurorack MX1804FX, Eurorack MX262A • FX devices: Lexicon MPX100 DSP, Behringer DSP-1000 Virtualizer, Behringer MiniFEX 800 DSP, Behringer Multicom Pro MDX4400 compressor • RETRO: MSSIAH midi/sequencer/synthesizer cardridge for the C64 (Dual-SID), Steinberg M.S.I. MIDI Interface for C64
Last edited by naquaada; 04-25-2009 at 11:54 PM.
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