Mohasus on 22 December 2013
AMD CPU is fine if you don't want PS2/GC/Wii emulation.
8gb of DDR3 is enough, it's the easier component to add more later if you need it.
SSD will greatly reduce the boot/loading times, it takes me around 10 seconds for a cold boot (I'd recommend a 120gb at least if you are going to buy one). It isn't a must have IMO, go for it if you have the spare cash.
Windows 8 is showing some performance advantages. As long as you take some time to learn how to use (or avoid) metro, it is a good OS. http://pcgameshardware.de/screenshots/original/2013/10/Battlefield_4_Windows_7_vs_8_v2-pcgh.png
