Switching Light Bulb Fixture to Flourescent

[rbeau30]

I have two of these in the ceiling of a 3-car garage:


It is insufficient lighting to do anything.

I want to replace them with a set of tandem flourescent fixtures like these.



So I'm not an electrician, but I am kinda handy. Always a little scared with wiring and stuff.
Should it be a pretty straight-forward wire-up? Black... white... green...