To answer your question I am running a SSD drive, the SSD drive acts as my primary for operating system & daily use programs/games. I then have a separate 3 TB drive that I use for storage.
In addition to my gaming/desktop PC I have a HTPC that has about 9 TB of storage for my movie backups, etc.
If you build a computer and select good hardware then stability won't be much of an issue. I am running windows 8.1 and have 0 issues w/ my system. With my SSD I can boot into windows in a few seconds.
To get rid of the annoying tiles I recommend buying "StartIsBack" it will make Windows 8's taskbar default to the Windows 7 style. Honestly I find myself rarely using the task bar except to shut down.
There is a program called fences, it allows you to make different plots on your desktop and store your icons in these plots. It helps to keep it organized.
Depending on what you're planning on doing with the computer will determine system specs. If you are going to be gaming and intensive hardware items I'd recommend a Samsung Pro 840 HD, if not get a Samsung EVO SSD. For storage I use WD Red drives.
Also I am an intel fan, I used to run amds exclusively, but with the recent intel q6600 - my current I5 intel I feel is leaps ahead.
Regarding graphics I like nvidia more than ati, ati has issues with their drivers and for the $ nvidia is great. Again if you aren't going to use heavy intensive graphics or games then you don't need anything crazy. You can pick up GTX 680s or even 700s for reasonable price.
Memory stick with crucial, corsair, or a well known brand. If you arent going to do too much gaming/intensive stuff then 8 GB will be fine. Get dual channel so 2 x 4 GB sticks. If you are going to be doing intense applications check out for 4 x 4 GB for 16 GB total.
Disc drive, I'd recommend a blu-ray burner, they aren't that expensive and the ability to burn 35 gigs of data to a single disc is nice.
Power supply again depends on use of PC, if you're not going too crazy with gfx & stuff a 650 watt should suffice. If going a bit more crazy go with an 800 watt. I highly recommend modular psus as they make wire management easier and I am ocd with wiring.
Case - depends on size and form factor. My desktop is a corsair 900d and my htpc is a small mini-itx
Hope this helps.