If the business is yours, you definitely have to be the CEO since you are the one who got the sight of where you want your business to go.
I'm a professional software developer and the founder CEO of my own consulting company, and I wear both hats adequately. This is only to say that this is doable. Besides, this requires a lot of hours each week. This is not to mention that I do my own accounting, except the end of year taxes.
As already mentioned, it is simply better for your business to have a CEO capable of technical understanding and who is able to get how did a project not succeeded or else, and not to point out someone unnecessary.
Beware though, you may be a good technical guy, but no good CEO and vice-versa. You got to know yourself enough to put your own limits and to recognize them so that you may call for help from employees later anytime as needed.
As a technical capable CEO, you will also be able to recognize those who work for your business (you), and others who work for themselves. For sure you can do both for a while until your business grows big enough for you to only put the manager hat on and let a current employee be the CTO or system administrators, that is, if you got no problem in dealing with customers and getting new contracts, which is a rather different game to play than system administrator, that is for sure!
I hope that my grain of salt may help somehow!
I wish you the best of success! =)