Buying a Condo, Coop or a house has its own rewards and benefits. You will first have to meet with a mortgage professional to discuss your options and to find out how much you are preapproved to borrow. Based on the amount that you are qualified to borrow that will determine how much real estate you can purchase. In my professional opinion it is less complicated to purchase a house rather than a Coop or Condo, you can buy and sell a house with need approval from a board. But you are also committing to additional higher expenses that you maynot have when purchasing a Condo or Coop. Such as heating, water, higher property taxes, etc.
When purchasing a Condo or Coop, each month you will have to pay your mortgage, common charges (and any utilites not included in your common charges such as electric and gas, this varies depending on the building) and property insurance. With the purchase of a house, you can buy with as little as 3.5% down. There are several Condos that FHA approved that will also allow you buy, putting only 3.5% down. Most Condos and Coops require you put anywhere from 10%-25% down or even higher than that and you also have to have some reserve funds.
You need to look at your situation and see which is best. I would be glad to discuss this with you further.