I don't need some specialized headphones or anything, just plain old headphones that are nice and loud, and let me hear music... Then a pair of $25 Sennheiser

I don't need some specialized headphones or anything, just plain old headphones that are nice and loud, and let me hear music... Then a pair of $25 Sennheiser HD 200 series headphones. Cheap, great sound, fairly decent at isolating noise. Why spend $200 if you don't have to? Alternatively, look at noise cancelling headphones like the Bose series, but try before you buy, some people cannot stand the "pressurized" head feeling of noise cancellation.