I have been a real estate appraiser since 1988. If you have an apptitude for it, it can be a good career. There are many ways to enter into the industry.
Most appraisers do not have a degree in appraisal or real estate, but they did have to take appraisal courses to get licensed.
I believe in most states, real estate agents and brokers are also required to take at least one appraisal course to get their sales license. The course you are considering will probably be attended by potential appraisers as well as future and existing real estate agents.
Since the savings and loan crisis, each state regulates appraisers. To obtain a license, you will need to take classes and obtain work experience (check with your state government for their specific requirements).
If you take a basic class and like it, you could probably find a trainee position. Most appraisers start that way, working for someone else and training on single family homes. As a trainee, your fee split will be low. As a general rule, you will not make much money your first 2 or 3 years. During that time, you will also usually be taking classes. Once you are licensed or 'certified' (states have multiple levels of licensing, from trainee up to a level that allows you to appraise anything), you will need to take continuing education.
While single family residences are the 'bread and butter' of the industry, there are many potential career paths, including right of way work, specializing in a certain type of commercial property, working for developers, working for banks, etc...
Many appraisers work for small shops or become self employed. If you are sharp, motivated and can land some clients, you can realistically be making a decent living and/or be self employed within 5 years.
The premier proffessional organization is the Appraisal Institute,
http://www.appraisalinstitute.org/ They will have a chapter that covers your region. They also offer classes. Their instructors are usually top notch, but the classes will be expensive. If you get serious about the career you will eventually want a proessional designation, the AI courses lead to the highest professional designation, the MAI. You can also usually take an introductory course at a Junior College for little money. Your state office that regulates appraisers can give you list of approved education providers.