Just click "Add to Wishlist" on the store page for the game.
Also, I believe that the games you want may be on sale on GOG.com, by the way.
So they are, thanks!
Your bank has declined your payment attempt.
Oh, that's nice!
Edit: Okay, my card is currently locked to international transactions. Fortunately for me my mom is awesome and let me used her card for the purchase. Women's Month just became 20% cooler.