@Lindel Smith, I believe you are correct that many of the properties in the Indianapolis area, especially the NE and E side suburbs are over priced. Except, that is where immigrants from Chicago seem to be moving into, so they're selling a 3 bedroom 2 bathroom for $300,000 and buying one for $200,000 (what 7 years ago would have been $130,000 when I moved from IL to IN). So I, and this is PURE opinion!, feel that prices may go up to about $300,000 before they plateau. The problem is, we (as in me at least) are looking for something under $200,000 we can fix up and lease for a reasonable sum.
Those deals are far and between it feels. Granted I am stuck with the MLS (Homesnap is great, double check through Trulia/Zillow to find listings, but Homesnap seems to be really good at updating and keeping up to date) which means most of the good deals are already gone.
Yet there are still some good ones. I like Warren Township. Strong Class-C homes in a blue collar neighborhood. There's children playing in the streets, there's original owners from the 1950s, the trees are fully developed. If you can get an unflipped house, you can put a lot of sweat equity in to boost your appraisal and lease for a decent amount.
Other areas that I have had recommended to me include Perry Towship, Center Township, Washington Township, and Franklin Township.
@Corey Ogle, Noblesville is great. I live in Noblesville and my first rental is there. Just keep in mind it is growing, which means the builders are throwing up new houses left and right which is going to give you a lot of competition. Also, I think it's getting to the over priced - that's just my opinion. That said, I've had three neighbors in my subdivision alone list their homes for sale last year and all three sold in less than a day - the house across the street from me sold in four hours! So there's definitely demand.
Parking in "old Noblesville" is insane. So you may want to make sure whatever unit you look at includes a garage if you are looking closer to town center. That said, it's beautiful. There's golf courses, walking paths, a giant lake (Morse reservoir), you can see people rafting and canoeing down the White River all summer. The high school is virtually brand new.