electricity consumption

I recently moved into a home with another couple... my boyfriend streams live on twitch and has one tower, 3 monitors and 3 lights that he uses while streaming around 5 hours when he does. He barely does this daily. It is a good source of income for us. Now the question I have for you... is it...

I am a gamer. In our country we have short voltage cut offs. Where the electricity goes off for like a second and comes back immediately. Sadly i've alreayd had to change a motherboard cause my pc kept shutting down and the mobo died. I then got a UPS with 750 va . the problems is when i am...

I have a built desktop that has an Intel Core i5 3330 CPU, a GTX 560 SE graphics card and an Asus p8b75-v motherboard. I want to upgrade my graphics card to a newer, faster one. But I would also like it to be a good price for me (200$ or lower). I will be playing Minecraft, Bf3, MMOs on medium...