psicat: Gifts from the site are made by purchasing the game and gifting the game code. Your best option for what you want to do would perhaps be to purchase a prepaid visa to gift so the recipient can make their own purchases with that.
Hunkburger: Yeah I thought of that. The recipient would probably use those funds for something other than games and I want to specifically force this person to buy games. BUY GAMES, not an electric toothbrush!
Oh well, there is GamersGate's and their Blue Coins like pops117 mentioned. Perhaps gift the person one game from here you think they might really enjoy, and purchase some Blue Coins for them to buy one game from there that can be their own selection.