Bill, it ain't too bad if you remember to turn off the breaker first.

I've worked on everything between 4v DC to 480v AC and as long as you respect the 'lectricity, it's pretty easy to diy most things.
In residential wiring, black is hot and feeds from the breaker, white is neutral, and green/bare is ground.
All the extra wires in a flourescent light fixture stay in the fixture and need not be fooled with. Just disconnect the black, white and ground (either green or bare copper).
The new light uses the same color wires (or should).
One thing I have noticed about LED lights in general is that it is a "cleaner" light. It has the same or brighter light emission but without the fuzzy glare. The city near me has been swapping out street lights for LEDs and I noticed there isn't that haze around them at night, they are just clearer. I noticed the same thing with the outdoor lights my son just installed on one end of his house.
Last night I swapped the CFL bulb on my porch to a 60w LED (4 for $6 at wallymart) and it is much brighter.