I'd stay away from solid state drives for a few reasons. Their have been a lot of firmware issues since their release. For a gaming rig it isn't a big deal to have a potential storage time bomb sitting in your system, but this is for your job. Also, I haven't read much on how they actually fail and what kind of real-world timeframe it takes for them to go.
Sandforce drives have alot of firmware issues. Intel prides themselves on having the lowest failure rates, etc. Crucial SSD's have a pretty low failure rate (or high approval rating) as well. The way I see it, firmware problems are
most likely to start on day 1, or not happen at all. First thing you should do is update firmware, that gives you the best chance at avoiding problems.
Heres a nice article to put "reliablity" of SSD's into perspective. Even though they focus mainly on Intel SSD's since that's whats used most in the server world, I found it to be an interesting read. Enterprise SSD's are probably a good idea to further reduce the chances of failures.
http://www.tomshardware.com/reviews/ssd-reliability-failure-rate,2923.htmlWhile I don't know how SSD's fit into your RAID/backup needs, I can say this: Having an SSD will make your system much snappier (loading/opening windows, etc), possibly a good thing for those quick trades? Downside...SSD's don't have the capacity that most people need at a cost they can afford which means they're generally paired with a HDD to handle mass-storage duties.
Get 16GB of RAM, ram is cheap these days (~$100 for 16GB) and you'll probably have many programs/windows open to fill 8 monitors so more ram is better.
the i7 2600 (not K series) is my CPU recommendation. 1) yes, the "K" series have some features disabled (they may or may not apply to your needs) and 2) I doubt you'll be looking to overclock and potentially shorten the lifespan of your processor.
This looks to be an awesome build! pictures would be nice to see when you're done? Not everyday one gets to see an 8 monitor setup.
Main: i5-3570K, ASRock Z77 Pro4-M, MSI RX480 8G, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Seagate SSHD, 8GB 1866MHz G.Skill, Crosley D-25 Case Mod