Finished Build - Final Stages before Purchase

[Vociferate]

BenQ G2420HD 24 Inch Widescreen LCD Monitor
Microsoft Windows 7 Home Premium 64bit OEM AMD
Phenom II X4 965 Black Edition
HDMI V1.3 Male to Male Cable 3.0m
NZXT Hades Mid Tower Case
Hitachi Deskstar 7200RPM 500GB SATA
G.Skill F3-12800CL9T-6GBNQ (3x2GB) DDR3
Gigabyte GA-890XA-UD3 Motherboard
Gigabyte ATI Radeon HD5850 Overclocked 1GB
Razer Goliathus Omega (270 x 215mm) Speed Edition
CoolerMaster CM Storm Sentinel Gaming Mouse
Razer Arctosa Gaming Keyboard Silver
Thermaltake EVO_Blue 650W


There is the basic build.
The total is going to cost me around $2000 AUS, but I still feel like something is missing.
I will be 5 Boxing in World of Warcraft (Playing 5 accounts at once). And I would like to get competitive in PvP if my skills begin catching up. But only time will tell later on.


I might be able to squeeze a few more bucks out for accessories and the works.
But I did also have a question about a gaming key pad. IE: XKeys.


Does anyone use them? How do you feel about them? Where can I buy them in Australia? Are there any decent alternatives?


Should I look into an SSD Drive, or a Velociraptor 10,000RPM Drive?
I was also reading about:


http://www.fusionio.com/products/ioxtreme/
http://www.hyperossystems.co.uk/07042003/hardware.htm


I don't really understand those systems. How would I utilize them?


Again, thanks for all the help and consideration. You guys get a lot of these threads.

(Thanks for the Title repair, Vecter!)