All good advice above it seems!
Having been a registered mortgage lender for about ten years now, offering loans from 3-4 different lenders during that time... And personally having bought two houses- one is now a rental- I can give you some advice.
Location is important, but MOST important from a resale standpoint. If you plan to live there forever, who cares what others might want/ like, buy where YOU want to live... My only "spin" on the "location, location, location..." Adage.
Your loan is as important of a choice as the home you decide on. Do you have money down? If not- as most do not- shop around for a first time home buyer's option that can give you reduced/ NO down payment options, then when making your offer get the seller to pay up for closing costs... Has become almost standard for sellers these days! A Few options to look for in your area: USDA. If you are buying a home for less than $100 in Illinois, it will almost certainly be out of the city a ways (or in a neighborhood that is not safe) may qualify for %100 financing! If not, see if there are any state/city/ county down payment assistance programs! They can- in my area- give you a partially/ COMPLETELY foregiveable "loan" that you won have to repay if you stay in the home a certain amount of time!
Rate is important- but check your APR not the base rate when comparing loan options. The APR is a figure that includes all the fees the lender charges for your loan, and it gives you a true comparison... The rate may be lower at one place, but if they charge higher fees, the APR will show that... Gives you a simple, easy way to compare mortgages without having to understand a GFE!
Vin was spot on in recommending you look around on your own outside of any listings a realtor offers... Not to say you should NOT buy a home offered by a realtor, but keep in mind they work off a percentage of the sale price and won't want to show you anything that costs less than the max you are approved for! Look on your own and you may stumble on a deal your realtor "weeded out" because it was too cheap! I bought both my houses from listings I found on my own... My realtor was showing me a house up the street from my first house, we went back for a second visit to a house I wasn't thrilled about and someone had just listed (for sale by owner- IOW they stuck a sign in the yard) this great little place up the street that cost about $20k less and I liked it WAYYYY better! Signed a contract the same day!
The house's BONES are important. Cosmetics are not. Brick is good! A WOOD BURNING fireplace, where you live with a good wood stove and a blower, and a solid chimney would be high on my list! You can always add granite later, rip up carpets, paint... But changing the exterior from vinyl (PLASTIC) siding to brick is not really a cost effective option. Look for sagging/ creeky floors, doors that don't shut right or stay shut at all, cracks in exterior walls around Windows or above door frames inside... Could be signs of a bad foundation... A little settling can be expected in a house over 40 years old or so, but especially on a newer home, I'd be careful if you see anything like that... Home inspectors are your friend... IF YOU ARE THE ONE WHO HIRES THEM! They have a business to run too and if you let ANY realtor hire your home inspector, your might get hosed... They want the referrals and they won't get them if they sink realtor's deals to tell people about the busted water heaters/termite damage... That might go unnoticed for years if they don't speak up! Find one yourself, and get one with good reviews (or perhaps Irrate reviews about how they "delayed my closing because they found a bunch of TICKY tack BS..."- THAT is the inspector you want!)
Happy for you Sorce! Buying is ALWAYS a the better option when living somewhere long term.... Don't let renters spook you with tales of dropping home values and large repair expenses.. Get a home warranty if you worry about repairs and ask the guy who decries buying because it "may not be a good investment" how much they plan to make when they move out of their rental! Then ask them whose mortgage they have been paying? Repeat: Buying is ALWAYS a better financial decision for people who are going to stay somewhere log term. Period. Short term (less than 5-10 years) renting is fine...
One final note on mortgages: if the lender tries to tell you to take some short "ARM" (Adjustable Rate Mortgage) so you can "afford" more house, FIND ANOTHER LENDER. IMMEDIATELY. THEY ARE NOT RECOMMENDING THE BEST PRODUCT FOR YOU. Those products and the interest only jobs that were so prevalent 10-15 years ago are what nearly ended our economy in 2009. Nobody should take advantage of that sort of BS unless they have a very particular situation that makes them beneficial... And "buying a home for me and my moderate-low income family to live in for the long term" is NOT A SUITABLE SITUATION! Go for fixed rates, and do not look at any of this silliness where they offer a term longer than 30 years. Take a 15 if you can afford to.
Good luck man!