Hi Rhys,
Welcome to the board - I live just up the M62 from you, near Warrington.
If SF and Fantasy is your thing, you're in good shape with eBooks. One of the leading SF&F publishers, Baen, are probably THE "leading light" in doing the "right thing" with eBooks. They make all their books available in a wide range of different formats, DRM-free, and all at very reasonable prices. See:
http://www.webscription.net/
for details.