I've recently decided to delve into the world of pre-Morrowind Elder Scrolls games. I've loved every game since Morrowind, with various foibles and annoyances, and now that I'm a skilled enough modder to start doing some more advanced things I want to go back and see the best from the other games too (regardless of the "genre", I just want to get ideas), so I can start creating the perfect experience in Skyrim.
Arena and Daggerfall are both available from Bethesda directly for free, however Battlespire and Redguard are nigh impossible to get hold of. I could spend upwards of £60 to get both on well known websites, but are there any other ways to get it legally, or any other websites that might be cheaper? I really don't have that kind of cash to spare at the moment.