Update for everyone - I have officially now purchased all of the individual components.
Final Spec (and costs) is as follows:-
CPU - Intel i7 2600 = £160
A bargain at this price, I don't want to overclock, and it contains ALL the extra bells and whistles when it comes to virtualization (VT-D, Hyper-Threading etc) which the K version doesn't.
Motherboard - Gigabyte Z68X-UD3P = £85
Another bargain. I spent a long time deciding the best way to go with this. This board was very cheap for the spec, and had all of the components I wanted (including more SATA-3 ports than other models in this price range), without any of the extra fluff (e.g. VGA/DVI/HDMI outputs). It's got some drawbacks (no full UEFI) but meh, that's not important to me. Plus it looks sexy as hell in black.
RAM - Corsair Vengeance 8GB (1x8GB) DDR3 1600Mhz x 4 = £48 x 4 = £192
I bit the bullet and got the full 32GB. Is it overkill? Maybe, but I don't think so. At such a good price from OCUK, it just means I can allocate more RAM to my VMs, which can only be a good thing. Plus it's black, and will go fantastically with the motherboard.
HDD - Crucial M4 SSD 256GB = £250
Yep - I went full SSD, and saved a bit of money off the RRP in the process. I finally chose 256GB as I don't have to worry (too much) about the size of the VMs. No RAID, so I have TRIM etc, and this got decent reviews. A bit of a luxury, but I'll be FAR happier knowing I have large VMs that boot in seconds rather than minutes.
Case & PSU - Cooler Master Silencio RC-550 Silent Tower Case and GX 650W Power Supply = £100
Seemed a good deal from OCUK. Was originally going to get the 550W, but then this came on deal of the week for the same price. Looks lovely, silenced, understated. Free fans too.
CPU Cooler - Arctic Cooling Freezer 7 Pro Rev 2 = £17
As I bought the CPU OEM there was no stock heatsink/fan, so I picked this up. Everyone raves about it, so I thought it was about time I saw what all the fuss was about. Cheap too.
Optical Drive - Samsung SH-S222AL/RSMS 22x DVD±RW SATA Lightscribe ReWriter = £18
Was on deal of the week last week for a fair prce, so picked one up. I probably won't use the lightscribe feature, but for £1/2 more than a standard DVD writer, I just thought why not?
Total = £822
Extra bits / Bits that I might get
Mouse - My G5 is shot, so I picked up a Logitech G400. Got one for £25 ish, even though it's now on deal of the week this week! Ack
Keyboard - So damn tempted to get a Logitech Illuminated Keyboard, but I'm resisting my urges.
USB 3.0 Flash Drive - To get full use out of my new USB 3.0 slots.
Most bits I got from OCUK, expected delivery is tomorrow which is great. If I could get a component elsewhere for a noticable difference then I did. No point in spending extra for the same thing right?
I'll update again once the beast arrives, maybe even take some photos.