For a beginner it's quite hard to recommend, DipTrace arguably has one of the better UI's in the small / free game, though with MultiSim Blue from Mouse (NI Multisim) that might be a better option.
Eagle, and KiCAD both have a large online presence, probably the biggest of them all, in terms of tutorials, part libraries, etc.
Design Spark might also work for you, it's free and unlimited, from RS, I could never get on with it but it is a nice package.
If I were you, clear an afternoon (or several) download:
DipTrace
Eagle
MultiSim Blue
KiCAD
Design Spark
and have a play with them all, have a look at the tutorial guides first to see how steep the learning curve is.
Ultimately only you can decide on which program to use, none of us here on the EEVBlog can agree on a single package !