So, next year, come July, start checking to see what classes are offered by HRB or JH in your area. These are often heavily discounted to fill the classes and definitely a good deal if they are charging $99 to $299 to take the introduction class. I find that it's very good to actually take a class with an instructor and classmates.
For the fee, you will get a handle on current tax law and the comfort level to read the IRS publications. If this makes you more comfortable to do your own taxes, it's worth the money.
Alternately, get the "bible" when it comes out for 2009. This is the famous "Publication 17" and available free from the government. All you have to do is ask for it. Then read it chapter by chapter from the beginning. (The pro classes use it too.) While you can spend $20 to get a book in a bookstore, it's really the same information.
Some community colleges do offer tax preparation courses but they tend to be theory with little practical material. If the H&R Block or Jackson Hewitt stores in you area offer a tax preparation course they normally do a pretty good job of teaching the basic material. The levels to which they teach may depend on the state in which the course is taught.
go to www.irs.gov and request Publication 17 this should help you, or if you want to take some on line classes, www.cstcsociety.org you can enlist in an on line course
I don't know where you live but I found a FREE income tax class through Liberty Tax service that I am currently taking. I only had to pay $35 for the books.