Yes, Sennheiser headphones are a safe bet. Another good quality brand is Audio-Technica.
The
Sennheiser HD555 full size headphones are within budget and come with a 3 metre cord. Another alternative that is just about within budget is the very good quality
Audio-Technica ATH-AD500 headphone, which also come with a 3 metre cord.
Both of the above are
open back headphones - take a look at the link to see if that fits your requirements. You may actually be looking for
closed back headphones if you don't want to annoy others sitting near you.
If a 3 metre cord isn't long enough you will be able to find a headphone extension lead at Maplin. We will also be stocking headphone extension leads in the very near future.
Shaun
__________________