So I read this post (if you're thinking of getting into incursions click the link, read the post and the guides it links).
I've heard that incursions are the best thing going in highsec, and had considered trying them. After reading that post and one of the guides, I decided to go for it. Fitted out a scimi -- logi are highly sough after in incursion fleets, and much cheaper than many of the DPS ships people fly.
I got into a fleet doing tier 2 incursion sites, which it turns out are not very difficult, and made 54m/h over 3.6 hours. So, easy money, and apparently much more profitable than missions. Unfortunately profit still scales linearly with time, which is something I've been trying to get away from with manufacturing, science and trade. Odds are I won't be doing these much in the long run.
If you decide to give incursions a try, I highly recommend getting at least a logi or tier 3 CR battleship before trying to get into a fleet. They can be somewhat selective.