Can someone check this workstation build before i buy...

If someone could take a quick look at this (my first) workstation build before i buy I would be very very grateful. Posted this in System/New_Build forum but didn't get any response then someone suggested i post here. perhaps because most builds discussed in that forum are for gaming. Anyway, thank you for much needed help.

Approximate Purchase Date: this week
Budget Range: 3000 usd
System Usage from Most to Least Important: Rhino, Autocad, CS5
Parts Not Required: -
Preferred Website(s) for Parts: -
Country of Origin: China
Parts Preferences: see parts list below
Overclocking: no
SLI or Crossfire: no
Monitor Resolution: 1920x1080
Additional Comments: workstation


MOBO: SUPERMICRO MBD-X8DAi
CPU: 2x Xeon E5620
GPU: NVidia Quadro 2000
RAM: 2x 4GB/PC3-10600/DDR3 ECC
SSD: Crucial C300（128GB）
HDD(option 1): WD Caviar Black 1TB 7200 RPM 32MB Cache SATA 3.0Gb/s 3.5" (WD1001FALS)
HDD(option2): WD 600GB 10000 SATA3/32M（WD6000HLHX）
DVD: Sony Optiarc AD-7240S
LCD: LG-W2242S-PF
Key: K120(Logitech)
Mouse: M90(Logitech)
Case: Corsair 700D
PSU: Corsair HX750