Hello, I just got a new graphics card in the AMD Radeon R9 270 2 GB and it comes with HDMI, DiplayPort, DVI-I, and DVI-D. I plan on running 3 displays. 2 by VGA (older dells) and 1 by HDMI (32 IN. Vizio 720P TV). I currently can only run 2 monitors however because I need external cables to hook up the 3rd monitor, I have a DVI-I to VGA Converter but no Display Port or DVI-D Converter. which would be easiest to find and best to use. Anyplace I can pick up in store rather than buying more online?