in my opinion you only want to be looking at new 6th generation intel skylake cpu's, socket 1151 or lga 1151 (same thing.), like the 2 cpu's i've listed in earlier posts or in the below link.
http://www.newegg.co...N=-1&isNodeId=1
only reason to look at older generation intel cpu's is if you're budget limited.
i expect all new cpu's you'll be looking at will have a built in gpu (graphics processor.) and the motherboards you'll want to be looking at must have onboard graphics capabilities "cpu dependent." because you don't want a dedicated graphics card at the moment.
all motherboards will have a pci-e x16 slot so be able to fit a dedicated graphics card if you decide you want one at a later date.
you should probably stick to atx or micro atx size motherboards.
no you won't need a tall tower case, a mid tower case like the one listed or shown in the video will be large enough for nearly anything you're likely to be looking at, but if you prefer bigger cases or think you'll need a bigger case for some reason then now is the time to buy it.
if you definitely want an after market cooler then i'd suggest this (not cheap.) :- http://www.newegg.co...N82E16835181036
or this (much cheaper.) :- http://www.newegg.co...N82E16835103099
I would like a better one as you have.
my pc is over 7 years old, was a ferrari in it's day though, so still does a good enough job at the moment for what i use a pc for now to not justify me building myself a newer system, even though i'd really love a pc as fast as the one i just built for my daughter so am trying to talk myself into a new pc too.
Edited by terry1966, 23 February 2016 - 05:23 PM.