Blackburn racks are the standard. Bruce Gorden are more for expedition touring. Very nice, but expensive.
I use a cheaper Blackburn look-a-like on my commuter, and it works very well, even with heavy shopping.

Arkel make highly regarded panniers. I use Carradice ones, which are made of bomb-proof canvas, but are still lightweight and stiff.

Expensive lighting systems often use genertic sealed beam lamps. You have a flood and a spot, which may focus (so is not road-legal in the UK).
European style Dynamo lamps are specially designed to optimise the 3watts output into a rectangular section on the road, and a star pattern for side visibility. They make much better use of the light, and can appear almost as bright as more powerful systems.
I get about 3 hours use out of my lead acid battery at 3 watts, and find it fine for riding on roads, and even dark tracks.
High power systems are designed for kamikaze night-time off road riding. You need a big power unit or they burn out after an hour.