New hard disk question

I want to upgrade my Mac Pro with a new hard disk but have no knowledge on how that should be done. Just now I found out that there is no need for a Mac product, that I can use any hard disk from a computer store. Technical stuff is not my strong side, for sure

Can anyone please suggest me a brand and size/ speed I should be looking for. I use FCP X a lot and need a big drive. But what is big these days? I looked up what Internet has to say but if I run into 6 months old information that, probably, is already outdated information and hard disks are twice as big as they were half year ago. For example, is 260$ Hitachi 4TB, 7200rpm, 64MB, Sata III, Deskstar 7K4000 big and fast enough for a Mac OS X 2x2.4 GHz Quad-Core Intel Xeon computer?

Also, does it require specific knowledge to add new hard disk or is it a simple plugging in procedure easily done by everyone?

Thanks!

Any SATA drive should work in the computer, make sure it is at least a 7200 rpm. On most of the Mac Pros all you have to do to install the drive is to open the computer and push it into the hard drive dock. I the one I have the dock is in the upper part of the computer towards the back of the computer. You will want to format the drive using Disk Utility that is in the Applications/Utility folder. Just use the default settings.

EZ.
1. Buy a drive. As stated SATA, 7200 RPM as big as you can afford Hitachi, Seagate, Western Digital.. all good.

2. Unplug, then open the computer. You'll see some drive "sleds" along the top. (or along the back, but I
think yours are on top, same process either way). One (or more) will have a drive in it. Pull out the first empty one.

3. Screw the 4 attached screws into the drive to attach to sled. If you're not sure which way it goes, pull out the sled with the drive in it and take a look at how it's attached.

4. Slide the sled(s) back in to the slot(s) they were in. Make sure they seat properly. Don't force it!, if it's lined up right you'll feel it connect

5. Close up the computer, Plug it in, Boot it up.

6. Open Disk Utility. Locate the new drive in the top pane of the list on the left. Select it. Click the "Erase" Tab, make sure
it's set to Mac OS extended journaled. Give it a name. click erase. Done.

It's very easy... Just make sure you've selected your new drive, not your Macintosh HD, or any other internal/external drives you have connected! If you're unsure, unplug all external devices, if you only had one drive (Macintosh HD) installed, it's the other one.

For reliable drives, good prices, Mac compatibility, and GREAT customer service, check out Other World Computing, too.

Yes, adding a drive to a Mac Pro is mega simple. As stated, open up the side panel, it'll be very obvious.