When checking out, I only have one shipping option - First Class Mail.

Note: I used the Table Rate, but changed its text to read "US Postal Service" and then changed "Best Way" to read First Class Mail.

Onto my question: How can I make the radio button be selected by default?

Take a look:
http://img247.imageshack.us/img247/9...shot005jn4.jpg

Another minor annoyance is the vertical alignment of "First Class Mail" and "$3.75" doesn't match...is this easy to fix?