GPU: GTX 670 ~ haven't decided which make yet.
A few Q's
1). Should I get the OEM or retail version of windows 7? I've heard that after the OEM version is installed you cannot change or replace any parts, correct? Would it be better to invest in the retail?
2). Do I need a cooler? I'lll overclock whenever my PC can't run games at stock speeds but hopefully that won't be for a couple years. Should I get a fan now or wait? Which CPU fan would you recommend? Watercooling maybe?
4). Fractal design define R4. I really like its look but I'm a bit hesitant because it's a slience oriented case and I'm not sure if it can fit a decent CPU fan or water cooling setup. Does anyone know if this is possible?