Preparing for a race

Question for you: I'm hoping to run my first 5K (non-obstacle) race by the end of this summer/early fall. I wouldn't be TOO concerned with the time, more so with completing it and keeping walking to a bare minimum... Any tips on how I should structure my WODs to better prepare myself? Or any other training I should address as I get closer to to the run? I have absolutely NO background in running (besides the occasional sprint work I do with Coach Heidi in CFE a few times a month). I wanted to make 2013 a Year of Many Firsts, but this one's causing me more anxiety than any of the others. HALP!

First things first, calm down. Don't worry about where you should be, and be where you are. Then build from there. 

Secondly, now that we can breath, training to complete a 5k race should be pretty easy for a regular CrossFitter. Here is a really basic format that should supplement your regular training with ease:

4 weeks out from the race: CrossFit 3-5Xs/week, 10 minute run 2-3Xs/week

3 weeks out from the race: CrossFit 3-5Xs/week, 15 minute run 2-3Xs/week

2 weeks out from the race: CrossFit 2-4Xs/week, 20 minute run 1-3Xs/week

Week before the race: CrossFit 1-3Xs/week, 20 minute run 1-2Xs/week

This is super simplistic, and not perfect for everyone. If you want to change it up a little bit- do! Then have fun on race day. 

From personal experience, I used to run, started running again last month. It feels awesome to run as a stronger athlete. Runs tend to be, dare I say, fun.