Do it yourself. After you do the engine compartment, trunk and door jambs, you will be more familiar with the process and you will become more confident in painting the body. I assume that is a yellow car and the color should be somewhat forgiving and easy to spray.

I'm somewhat "new" to doing this stuff too and at this point have still not painted a "whole" car. I've only done sections. I find metallic way more difficult than straight colors. Yellow like yours... I would NOT hesitate to do it myself, especially if you are just wanting a nice driver paint job.