Hey Howie,
I’m still happy with the Fusion drive. It gets around 200-300 MB/s on avg depending on file size. I don’t use it to store media other than iTunes and photo libraries. For everything else we use a Server with 10GbE connections via Thunderlink. If you’re using it as a standalone I’d recommend a Promise Pegasus RAID via Thunderbolt.
I got 32 Gigs of Ram from OWC. It does not void applecare warranties.
Now, with this said, I also picked up a Macbook Air 3 or 4 weeks ago. Let me tell you – that SSD 512 is something else. It’s getting about 700 MB/s. Obviously, it’s too small to edit with, but wow is it fast.
With all of this in mind, I don’t think now would be the best time for you to buy an iMac if you can hold off. It’s very close to refresh time (2-3 months) for iMacs, plus we have Mac Pros coming out in that time frame as well.
We edit short form commercials and on air promotions. We work with full-res media in 30-60 minute ProRes quick times. The drives in our 16 drive array are Hitachi 4TB Enterprise striped in RAID5 with an ATTO R680. I would suggest an Areca 1882x instead of an R680, but if you get a Thunderbolt array, you won’t need this at all. We also have a Promise Pegasus 8 drive and it’s been flawless.
I selected the Fusion over standard 1TB drive because it’s got a larger storage capacity and a built in SSD that lets it get faster speeds on heavily used applications and media. Also, you can’t upgrade the internal drive easily, so a 3TB drive made sense for my future media needs (photos/iTunes).
That help?
John Davidson | President / Creative Director | Magic Feather Inc.