(I got some with great price/value ratio, but it hasn't been all that useful, so I'll just ignore it.)
Input devices: Winners are Noppoo Choc Mini (Cherry MX Red) and TypeMatrix 2030, I can't decide which is better; USB thinkpad keyboards are also nice, and I have big plans with an Elcom POS matrix keyboard. I've also decided to get a huge trackball, until then Logitech TrackMen rule — BTW it has helped me realize I don't really like even good gaming mice.
Desktop: I moved my desktop from a cheap microtower into CM Silencio 550, and it's been fantastic silence-wise, it was actually one of the things that made standing setup possible for me.
Laptop: I've replaced a Lenovo ThinkPad Edge 11 with an X200 Tablet, and it's been awesome. This might be one of my best purchases in the long term.
Headphones: Grado SR-60i's helped me enjoy large portion of my music collection again; probably Audio Technica ATH-AD500 too, but it doesn't fit my head that well.
Backpacks: I guess I got Dicota BacPac Xtreme in 2011, it's been amazing, but "build-quality" could be better. I can't wait to try the new Crumpler backpack.