I have a small 60Gb SSD with Windows 8.1 installed but then almost all programs are installed to a different drive and files are saved to a 3-drive RAID setup. This is all backed up to a home NAS and some files are also backed up to SkyDrive. The NAS has 2 drives in case one of them fails and this also stores media files and other device backups.Nice setup!!! I am not sure about SSDs i had two fail on me and i lost all my data, that was back in 2011, maybe they are better built now. I love graphics cards they allow the cpu to run cooler as they take pressure off when watching youtube videos in HD. Video cards are not just for games. I dont have a big end card, but a mid ranged around $500.
Main PC is running a quad-core 3.1GHz AMD with a "mid-range not-compatible but works fine for me" ATI graphics card which technically stopped being support at Win7, 8Gb RAM, total of about 1.2Tb in storage and 2x24" widescreen Iiyama monitors. Don't really game on it though - mainly Football Manager... tbh it's overkill for most of what it's used for (one reason I haven't bought a new GFX card) and it is USB3. Games are for PS3 currently.
That's all from memory though so...