And it's pretty cool. The software works quite similarly to an Email. I set up my wallet program on my PC, then inside it, it gave me an address that I can send to others that want to pay me. The address looks a along random sequence of numbers and upper and lower case letters, though it will also translate it into a QR code, which is the squarish 2D bar code with the 3 distinct smaller squares on 3 corners. I send that to the payer, and he opens his wallet program, puts in the address and the amount to send, and it then appears in my wallet, and the transaction is complete.
I now have $42 worth of bitcoin (at the current exchange rate).