computer chair

Greetings and Salutations! I am looking for a (ergonomic) chair that promotes good posture while sitting at my desk to: ▪︎Play games on my computer (3-5 hour long sessions) ▪︎General computer work (up to 2 hours) ▪︎Boardgames (Up to 6 hours) ▪︎I also sit in my chair quite often when listening...

Hi, Here is my first computer build. Are the parts compatible with each other? Also, will the microATX motherboard and a mid tower case be able to fit a 120 mm cooler for the CPU? http://pcpartpicker.com/p/3GXvyc Is there any potential problems with this build? Thanks very much!