the first place to start is by contacting a lender to get pre-qualified. You may qualify for a no-downpayment loan. Plus the lender will be able to tell you what price range you would qualify for and what your monthly payments may be.
Feel free to contact Jenn McCormick at 608-834-4252. She has many no-downpayment programs
your second step is to meet with a Realtor to go over the buying process and your needs and wants. If you don't know any Realtors in your area feel free to private message me as i can suggest a couple in your area.