Effective Drive Set-up for Editing JVC ProHD?

I'm considering a Mac Pro(dual 2.8; 4 gig ram)and Final Cut to edit ProHD acquired with the JVC GYHD200. My question is this: will I get the required date through-put speeds using internal drives only? If so, which drives should I order: 7500 RPM or 15,000 RPM? Or am I better off going the external RAID route? You get the idea... Any and all thoughts are appreciated!

+I don't want to pay the mark-up on a turn-key system--I'd rather configure it myself!+
But you're not configuring it yourself; you're here trying to get others to configuring it for you for free.
The thing is, HDV cannot be monitored externally while you edit. If you want to do that, you have to use an all I-frame codec, or add an expensive 3rd party capture card or device. Then you need to make sure your media drives can handle the throughput required by your codec of choice.
DVCPRO HD is about 17 MB/sec. ProRes 422 is about 21 or 28 MB/sec. Uncompressed HD can be as much as 140 MB/sec. Then there's 4:4:4 RGB (dual link), which is in another galaxy far, far away.
Because hard drives, when they are near full, produce as little as half the throughput as when they're empty, you need to build your storage subsystem for twice the bandwidth you think you need, and account for more than one stream of video. For example, if you're using ProRes 422 HQ (28 MB/sec), 3 streams (a dissolve with a title over top) would require at least 84 MB/sec. Twice that would 168 MB/sec. I'd recommend allowing for some overhead, so you want an array that can do 200 MB/sec.
Same example with uncompressed would require an array capable of doing 840 MB/sec. That's why savvy system builders will spec for two streams of uncompressed 422, or 280 MB/sec. Twice that would be 560 MB/sec. Systems that can handle that are pricey and only a few vendors make systems that qualify.
Note that I consistently advocate over-building storage subsystems. Many will be satisfied to build for a little more than the minimum requirements. I overbuild because I provide 24/7 telephone support for my clients, and I do not want to open myself for a lot of 3am calls.

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Effective Drive Set-up for Editing JVC ProHD?

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