You might get the same effect with a lot less wiring by using one or two solar spots to light the front of your house, putting up larger lights by the garage and front door, and adding solar landscape lights along the path to the door in the planting beds.

I have landscape lighting throughout my front beds that highlight the house. It seems like that would be easier than installing lights in your soffits, or am I wrong? Do u want them in the soffits for a particular reason?

I would replace the wall sconces at the door and garage. Something larger by the garage.

Landscape lighting makes a huge difference some path lighting and maybe a post light next to the driveway would be nice. Bringing light into the front yard not only looks nice but exterior lighting is also security lighting!

What is your objective? To generate path lighting? To highlight the house itself at night?

A couple of things to consider before installing lights in your soffits. Soffits are part of the ventilation system of
your roof & you don't want to interrupt their performance of that duty. Second, the pitch of the roof may mean that there is not enough vertical space in them to allow for the installation of pot lights (and your electrician might not thank you because running power out there where the roof line is very low might be a really tough task).

You might want to consider low-voltage landscape lights that work off a timer. They use less electricity, can be placed on a timer/sensor system to automatically turn them off and on, and they have the ability to generate the same type of effect with much less expense. The solar light recommendation is a thoughtful one, but in my experience, solar fixtures do not have the ability to generate light that is
a) bright enough
b) lasts long enough after dusk to be useful.

You can also use low-voltage landscape lights in the ground to wash the house and decorative plantings. My landscape lighting included what they called architectural "directional lights" -- they work like spotlights and can be adjusted up and down and from side to side to ensure that exactly the right parts of the house or landscape feature you want to light gets lit. Link to Directional Lighting at coronalighting.com

I also had well lights that are buried in the ground and were used to send light upward to light the trunk and branches of trees and bushes that had really awesome structure. I also had area lights to light up the planting beds and path lights to lead people from the driveway to the front door.

I couldn't afford really pricey architectural fixtures, so I went with Corona's value line & wasn't sorry -- although the path lights tended to be quite delicate & would get knocked over and broken by my landscapers who weren't very careful.

http://www.coronalighting.com/

What about "up" lighting instead of down lighting? That way you can highlight your landscaping as well as your home.

On the corona lighting website they also have a link called "photometrics" -- this shows the "cone" of light generated by different types of lightbulb and says how big the cone gets and the amount of light that falls on the surface based on how far the light source is from the thing that gets lit -- that will tell you how many spots you would need to "wash" the front of the house - you want the cones of light to overlap one another. The foot candle rating at a particular distance is the amount of light. Footcandle recommendations

The dark sky society has some guidelines to prevent light pollution

My landscape lighting still illuminates the house even thru the snow - it's actually rather dreamy looking with a blanket of snow.