Mother-in-law apartments- Good places to look?

[Jeremiah Quinn]

Hi all,

My wife and I have been renting in SLC for the last 6 months saving up for 20% down payment on a house with a Mother-in-law apartment near our work in SLC.  I've found some decent homes costing roughly $1.25 per sq. foot around Salt Lake county, and also found some much better-priced homes with MIL's in Toole/Stansbury Park.  

Where are some good towns within 1/2 an hour of downtown SLC to look for houses with MIL's?  Has anyone had any experiences they'd be willing to share with owning a house and renting out the MIL apartment to cover mortgage?