Lightroom & Ps workstation on a tight budget

Hi all,

I'm in need of an adequate workstation for mainly Lightroom and some Photoshop. I'm discussing the CPU separately on the relevant thread so I would just like a general opinion of the overall system. This is my first time building one so I would like to know if all the parts should work properly together, and if there is any part over or under-powered relative to the whole system.

Thanks

CPU:
Intel Core 2 Quad Q8200 (Box)

Motherboard:
Gigabyte GA-EP45-DS3

Memory:
G.Skill DDR2 4Gb (2x2Gb) 800MHz CL 5-5-5-15 PQ

HD:
1x Western Digital 160Gb 32Mb Cache (WD1601ABYS)
1x Western Digital 640Gb 32Mb Cache (WD6401AALS)

GPU:
Gigabyte nVidia GeForce 9600GT 512Mb DDR3 PCIe

Optical drive:
Sony NEC - Optiarc AD-7240S

Case:
Gigabyte Triton 180

PSU:
Antec earthwatts EA430 (430W)

Wi-Fi:
Edimax 7727In PCI

UPS:
APC Back-UPS CS 650