Looking to expand hard drive configuration into multiple Raid Drives...how

I'm want to put either two or three new drives into my new mac pro. I'll be using them for video editing
.....how hard is it (or wise) to link them in a SCSI configuration? How would I go about doing this?
....I'm not anywhere near a "gear guy" but I'm not stupid either (at least that's what my mom told me......heh)
I was told that an "enterprise class" is the way to go on the type of hard drive, so I'm planning on getting that type of drive.
Thanks for any help in advance.

No one almost uses SCSI - and I was a die-hard. Even SAS isn't worth the trouble generally.
A fast boot drive is helpful and SSDs or 10K WD SATA VelociRaptor (150-300-600GB capacity). Most just go for 1-2TB drives.
Software RAID using Apple Disk Utility. Backups, 2-3 sets.
With no real experience with RAID or setting things up then you are left with experimenting and testing what you know and can do and keeping it simple at first.
And most people do use 4 drive bays and then externals for backup and more.
SCSI generally means ATTO or LSI or others with a large up front cost in controller, cables and disk drives, that part hasn't changed much in 10 yrs. but SATA II/III has more options today.

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