My new Sennheiser PC350's arrived today along with the Logitech G110 keyboard.
Loving the headphones, amazing sound quality especially in movies. I took these over the PC360's because they are closed backs rather than open backs like the 360's. Apparently there is a small difference in sound quality, however closed back headphones are a must for me since I watch movies, listen to music and game mostly at night when everyone else is asleep. Don't want to disturb them :P. I imagine the sound will only get better as they are broken in over time.
Keys on the keyboard feel nice, however it will take some getting used to after using my old keyboard for 5 years without a change. Typing is very quiet.
I also have a pair of Creative T20 Series II's coming next week. Just a 2.0 speaker setup for when I don't feel like putting the headphones on or I want to show somebody else something.