Part of what's cool about FTA is that it really isn't "easy" in the sense of Direct TV or the Dish Network
It's not like you'll be you pointing your dish at a very strong (and easy to find) signal. You also wont be receiving a preset package of channels as you do with Direct TV or the Dish. But, that being said, with the receivers out today, and the knowledge available on the net, it is a very rewarding hobby. I've only had my receiver for a week or two, but I'm really glad that I bought it. FTA isn't hard - it's a rewarding challenge. I've really learned a lot (and need to learn a lot more).
LVFTA really knows what he's talking about when he said "You need to read, read and read more." That's the best approach to making it easier and cheaper. Iceberg's faq is very helpful. Research different receivers and systems on the net (There are quite a few links at the top of every Satellite guys page.) Read this forum. Read anything that you can get your eyes on
Here are some things that you'll need to start:
You'll need a good idea of what satellites can be accessed from your area. You can find an excellent and free program here:
http://www.arachnoid.com/satfinder/ (If you supply your zip code, someone might supply you with list of available satellite positions like they did for me.) You'll need to do a site survey (find a clear view to the satellite - no obstructions.) See this page:
http://www.sadoun.com/Sat/Installation/Dish-Pointing-Tips.htm You'll also need a compass and a good understanding of how to use it.
For your antenna setup, a power meter (Sat Finder) is nice. You can get one for around 9 dollars (maybe less?) if you shop around. Your receiver also will have a power meter in the setup. You'll need Patience to set up your dish.
By the way, I was originally going to buy a computer card as it looks like you're thinking of doing. I was persuaded to spend more money and buy a standalone receiver for my TV. I'm glad that I did in my particular case.
An idea of the channels that you might get can be found at the Lyngsat site here:
http://www.lyngsat.com/freetv/United-States.html
Hope that this helps. It's a lot of work, but I can't tell you how rewarding it is to lock in your first satellite signal that first time.
Good Luck.