I have decided to go for a single GTX 780 instead of SLIing my GTX 760. However, I don't know which GTX 780 to go for. I would like to overclock it so it can compete with a GTX Titan (might sound a bit stupid but I've seen on one of LinusTechTips videos that he overclocked the reference model and got it to perform slightly slower than a Titian). I would prefer it if it could fit in with a red and black colour scheme so no crazy rainbow LED's or yellow PCB's. Also, if you know what power supply I need please tell. I don't really feel they're necessary, but if you want to know my other specs just tell me and I will put them in. Lastly, keep it as cheap as you can get, I'm not the richest person on the planet! Thanks in advance!