Welcome to Satguys.
Even whats been stated can be overwhelming to a beginner, so let me try to simplify even that stated above.
You'll need a dish that is at least 30 inches (36 inches would be better). Look around your neighborhood, if you see one that is tilted, or you see one at a house that also has a dishnet or directv dish, you might get lucky, ask if they would like it taken down. If you want a dish quicker than finding one already up but unwanted, look at the gold sponsors listed at the top of this and every page, they can set you up/
You'll need a LINEAR LNB, not the one's you find on dishnet and direcTv, those are circular. Again, look to our gold sponsors for your first LNB, then later you can add to that with more LNBs as you get more addicted to this hobby.
You'll need a receiver. Look on eBay for a SIMPLE receiver that will get you entry into the hobby. I started with a complicated receiver but found that you can find inexpensive receivers on eBay that will and can get you started. These can be found for around $25 to $50 plus shipping. If you find one you like, ask here in this forum and people will come out of the walls to tell you their experiences with that particular receiver.
Check out satfinder dot com and look at your site, this will give you a great idea what satellites you can receive. You will need a south facing area to place your dish.
Most receivers (I could probably say ALL receivers, but some one will correct me) will receive both KU and C Band satellites, so you can start with a smaller KU band dish, then later, if space permits you can add to your dish (collection) as needed.
I would start with a stationary dish, then as you get accomplished in finding satellites, add a motor to your dish and see what that will open up for you.
So, dish + LNB + receiver = instant addiction to a wonderful hobby.
Do NOT expect to find all that you had on cable with FTA. It just AIN'T gonna' happen, but FTA will open a wonderful world of TV that you haven't been aware of until you get there, so enjoy what you find, chat about it here and keep reading, it will become clearer to you as you experiance the fun of aiming your dish and pulling in signals from places you never knew existed.
Photto