Whose color cable housing do you use?
 

I need a full set of red, and a full set of yellow cable housings for a couple of projects. I was going to use Jagwire. Is there anything else I should consider?

Jagwire is excellent cable & housing. If you have it readily available, then that sounds like a good plan.

How much do you need and what is your budget? I tend to get the lined colored housing in 50 foot rolls at Niagara for around $11 in blue, yellow and green.