Below is a selection of earphones that we can recommend under the £60 point:
Sennheiser CX500 - Good bass response. Good build quality. Large earphone body does cause problems with smaller ears.
Goldring GX200 - Good bass response (especially with the supplied Comply Foam eartips). Comfortable (again with Comply Foam eartips). Good fit, even for smaller ears. Build quality not as good as Sennheiser.
Ultimate Ears Super.fi 3 Studio - Very robust build quality (including replaceable cables). Very secure pro-loop, over ear fit system (although may protrude from the ear too much to sleep with). Very balanced sound with excellent levels of detail and clarity (although less bass response than Sennheiser and Goldring).
Shaun