Can anybody recommend some cheap headphones for my new iPod shuffle which I shall be using at work as in-ear headphones hurt my ears. I want to spend as little as possible as I already have a huge expensive headphone collection - £500 to £600. I am looking for something equal or better than the supplied iPod in-ear phones. What are the cheap Sennheiser headphones like - PX 30 for about £9.00? If the cheapies are rubbish I am prepared to spend a bit more .