Sun Prairie Apartments are very close to the 6000 block of Westown Parkway.
Sun Prairie Apartments
Never been in them, but they look nice from the outside.
I know there are a few smaller apartment buildings around that area too - I work 10 blocks east of where you are going to be working. If I think of it, I'll take a look and write down some of the smaller places for you.
The vicinity has alot of sprawling office campuses, so not having a car will be tough. I do know that Sun Prairie apartments is easily walkable to your work address, but the shopping and restaruants in the area are a healthy walk from Sun Prairie...
City buses do run in that area. You'll probably find their hours of operation and frequency of stops in the area disappointing...