I was a bit worried myself that a 1.4 might choke on everyday use, but decided to just try it anyways. After all, it is a third mac and it wont be doing much work besides the basic itunes/web browsing. First things first, forget about benchmarks for the CPU. Sure, it'll rank lower then an i5 or i7, but it's all relative. In my case, this computer is replacing a 12" Powerbook 1.5 ghz PPC G4. That computer was a dog CPU wise, and couldnt play any web based videos. So the ultimate CPU test in my book is via handbrake encoding. At the moment I am encoding a HD show at a solid 28 fps. The range varies from low 20s to mid 30s FPS. The Powerbook struggled to maintain 1fps, often around 0.5 fps to 0.8 fps. In everyday use, I havent noticed a slowdown going to any website, or accomplishing any task (copying large multi gigabyte files through my N network, while web browsing and encoding). The CPU throttles down from encoding as required and lets you just do whatever you want. So don't be afraid of the base model. Mine is the really basic - 2 gb ram, 1.4 ghz, 64 gb SSD. Hasnt bogged down once!