Non-crappy, won't destroy your budget headphones, all of which are full-size types:
- Grado SR-60, US$60 - excellent sound, no sound isolation. You'll be able to hear Feorag asking you why you're up in the middle of the night.

- Sennheiser HD280Pro, US$100 - excellent sound, excellent isolation. You won't hear the chainsaw murderer until he turns on the chainsaw behind you...

- Sony MDR-7106, US$100 - almost perfect sound, good isolation.