So what exactly is a "High End PC" - Just something with some grunt and plenty of RAM that I could put together for a reasonable price! Components and the key points I considered follow.

Case: Antec Sonata IV

    • 620W PSU
    • USB3 ready
    • Front connections
    • Good size & features

CPU: Intel Core i7 2600

    • 3.40Ghz
    • Quad Core
    • On-board Graphics
    • Virtualization support

Motherboard: Gigabyte GA-Z68MA-D2HB3

    • Supports the CPU [Correct chips & socket]
    • Up to 32 GB of RAM
    • Graphics ready (dual monitor support)
    • USB3 ready
    • SATA3 support

Memory: G.Skill 8GB (2x4GB) DDR3 Kit

    • 2 Kits -> 16Gb [figured I'd go to 32 Gb if/when I need to]
    • 1333 MHz [matches the CPU]
    • 7-7-7-21-2N

Drive [OS & Applications]: Seagate 1TB Barracuda 7200.12

    • SATAIII,
    • 7200rpm,
    • 32MB Cache

Drive [Shared Data]: Seagate 1TB Barracuda 7200.12

    • SATAIII,
    • 7200rpm,
    • 32MB Cache

DVD: LG BH10LS30.AYBR10B Optical Storage Devices

    • LightScribeâ„¢ Disc Labelling
    • BD Read and Write
    • DVD Read and Write
    • CD Read and Write

Monitor: Benq 24" Widescreen

    • 2ms
    • 1920x1080
    • VGA, DVI, HDMI
    • Speakers

Keyboard & Mouse: Microsoft Wireless Desktop 700

    • Single USB port for both
    • Wireless [Short-range]

UPS: CyberPower Value GP LCD 1500VA / 900 W

    • Blackout protection [~ 1 hr]
    • Brownout protection
    • Surge protection