i7 4770k 3.5Mhz
16Gb DDR3 (32Gb?)
3 of 4 GB GPU - this bit is the most confusing part for me
Decent-ish size SSD (250Gb seems livable whilst vaguely affordable)
Are these assumptions valid? Any advice on the Motherboard-sized elephant in the room also gratefully received.
I'd get a Core i5 if you are purely gaming, 4670K is the one.
The best GPU you can get your greasy hands on right now is the GTX780Ti, I have a GTX780 and it will run anything I chuck at it, I'd have got the Ti if it were out when I bought. But the AMD cards, I think the r9 290(x) is the one, they are looking very good indeed. I have read a few people say they are loud, my 780 is totally silent, but who really cares about fan noise anyway?
I have a 512GB SSD in my laptop as it's the only local disk but in my desktop I have a 256GB SSD for core apps (including games I play regularly) and TSRs (Apps that run on boot such as Skydrive, backup agents etc - speeds up startup) then a 2TB normal 7200RPM drive for other apps and games. I bought 100GB of Dropbox storage and I have probably about 250GB of Office 365 cloud storage via my business, plus a NAS, so my direct attached storage needs are very low. The reason I detail that is to emphasise that the world is changing: small very fast local disks complemented by very large & cheap centralised storage is the way it is going for even domestic users: most people I know now have a NAS or a media PC they stream from, plus some form of at least free cloud storage for crucial things like photos and documents.
So, to cut a long story short(!) yes get a 256 SSD (128 is pointless) then slower second tier storage, probably a second 7200RPM hard drive of reasonable size, or, get a NAS and use it for home entertainment also if you are feeling flush! We all have the option of ever-increasing amounts of cloud storage, often free but certainly very cheap, for data storage.
A Z87 motherboard chipset allows SLI (two video cards) and H87 does not. If I were getting a mobo now I'd consider this:
http://www.aria.co.uk/Products/Comp...Socket+1150)+ATX+Motherboard+?productId=55798
RAM? 8GB is minimum really but as it's so cheap now you could plump for 16GB. I use 1833GHz RAM, you can go up to 2400GHz, but the law of diminishing returns kicks in over 1833. If you are purely gaming 32GB would be superfluous right now.