You can try Ariel Rider C-Class. For 1799 it has almost all the features for a commuter. You will need to do your own assembly or ask your local bicycle store to do it for $100 max.
We are going to face some hard economical times so it makes sense to save some. I love Specialized or Gazelle...
Ariel Rider also has office in Seattle and their C-Class can be a good option. Price is around $1700 but it has mid motor, internal hub gear and hydro brakes (not best ones but still better than mechanical). And I remember they have throttle. I can be wrong about it you better check with them...