Gifting Steam games for System Shock 2!

I'm getting desperate here guys. I have tried using PayPal and 2 different debit cards on to buy System Shock 2 and none of these things have worked. Oddly enough, they work on Steam. So if you want, choose a $10 game on Steam and I will gift it to you, and after you have recieved it you can gift me System Shock 2 on  Please help! I want to play SS2 badly.

Add me on steam - Kakka Carrot Cake 

Like 7 names came up. Add me first - Cap7ainTasty