Crash has already covered two points here quite well, so I won;t address those.
GDR writes:
It would seem logical that evolution would occur gradually but consistently over time.
Not necessarily. That is now refered to as 'gradualism'. Gould put forward the idea that some changes can occur very quickly (in evolutionary time) and that these rapid changes can be interspersed by long periods of virtual stasis. This is now known as the theory of 'punctuated equilibria'.
GDR writes:
I think it is far more likely given the design involved that these genetic mutations were either designed initially or guided throughout the process by an external intelligence.
Most of us working in biology would not agree with this. When you say 'given the design involved' you are making a huge leap of inference that is not supported by any evidence. It is merely an impression precipitated by your incredulity of the complexity you are observing.
Where is the evidence of the designer, or even evidence of any 'guidance' in the process of evolution? There is none. Postulating guidance is a dangerous first step on a path toward a teleological interpretation of life. It's just simply not needed - an unnecessary adddition that doesn't improve or enhance any aspect of the theory.
GDR writes:
Given human consciousness and our sense of right and wrong, love and hate etc, I find it extremely difficult to believe that it too just evolved naturally.
Why not? All these things can be construed as adaptations in different context within human evolution.
GDR writes:
To me it's just obvious
To scientists it isn't obvious at all.