Comment I'd recommend LED Strips (Score 1) 445
You can get LED lighting fairly simply these days, and I think it's a lot better for outdoor use. Basically, think christmas tree lights but more subtle. You can get tubes or flatter strips that you can put pretty tastefully wherever you actually need to see. Consider lining walkways with dim LED strips rather than blasting everything with an obnoxious bright light. It's easy to attach them to deck rails or gutter lines. On a dark night they're enough to see what you're doing and where you're going and on a well moonlit night, well, you shouldn't need them.
They also have the advantage of being long-living and low cost (typically as they're overall lower wattage than huge floods).
Search amazon for "rope light" or "led strip light". Pre-strung ropes with plugs are the simplest, but you can get long strips of light that you can daisy-chain which require special ballasts (AC adapters).