The 290 kicks out a ton of heat, the card is optimal around 90c or something, thats a small case which will heat up fast, Haswell is a hot chip. That CPU cooler is great but its not a real Haswell killer of a cooler, not sure how well that case air cools either, its a Corsair case so im guessing its going to be fairly decent.
I have a Phantek Enthoo Primo, its a big case, it has 5 x 140mm fans, my 290 is stock, since installing the 290 my temps have risen on average by 4c at ambient levels, i have an Antec Kuhler 920 with 2 Enermax PWM fans cooling it. When i was running my 7870 in the case my i5 2500k @ 4.4ghz was idling around 28c and hitting 58c or so gaming, since adding the 290 my 2500 at the same clocks idles around 34c and hits close to 70c gaming.
I am waiting for my z87 RMA before i put my 4770k into action, at this point i am going to watercool my GPU and cpu with a full custom loop because in all honesty i just dont think my Kuhler 920 will cope on a quiet profile and i just dont want the noise.
So if your happy to have a loud, hot noisy PC then go for the 290, if however you dont want as much heat and a fairly quieter rig, go with the Nvidia option.
Simples