I have a Sennheiser headset which is just the HD 205s with a mic attached (The headphone version was a good £20 cheaper, I should have got that and then a seperate mic in hindsight), and the sound quality is excellent.
They do feel slightly uncomfortable for a while, but you do get used to them. The trick is not to rest them on your ears, they're designed to cover your ears, they should be resting on the area around your ears (Which I wasn't doing at first, hence why they were uncomfortable).
I highly recommend them, and they're only just over your budget:
http://www.amazon.co.uk/dp/B003LPTAZ2/?tag=gtplanetuk-20
I would say the ear cups on the 202s are too small, which probably makes them a lot less comfortable to wear, in my opinion. I'm not 100% sure how the sound quality compares between the two. The normal price gap is around £20 so i'm guessing the 205s are a little better.
EDIT: Well, at least they would be a good choice if it didn't say 'Usually dispatched within 3 to 6 months'
