barto :
Yeah, for streaming, an i5 really isn't needed. If you really want one, I'd get the one of the lower end i5 like RazerZ's suggestion. There won't be a performance difference between them. You could get away with an i3.
RazerZ :
Didn't read the use carefully. You could actually getaway with a cheap Pentium G3258, many have used it for HTPC builds. Could even go cheaper than a Pentium, but it has a good bang for your buck ratio.
Yeah I am doing another build with the G3258 for more basic needs. For this build I am running an SSD, no GPU, 8GB ram 1600.
Of course I want this build to be cheap yes, but also seamless even when I have a bunch of programs running.
I felt like a quad core would accomplish that, but maybe a strong dual core will be just as good. If i3 is the way to go, which one would it be i3-4130?