First of all confidence in what you are saying will resonate. So it's only 10 minutes, that is a small amount of time. So if you know the techniques you want to use, the REHEARSE until you know it perfectly and have it timed. Then record yourself and listen to your self. Since it is only 10 minutes you can rehearse it many times in just one hour.
Professional presenters choreograph every move of their body, that level comes at the top, but seek it out in the beginning.
I Learned from this book:
http://www.amazon.com/Winning-Sales-Presentations-Differentiators-Presentations/dp/1932908110/ref=sr_1_5?s=books&ie=UTF8&qid=1424262280&sr=1-5&keywords=patrick+henry+Hansen
My presentations are about 1 hour, in front of a group of strangers. You should be comfortable in a group of peers, but if you know none of them very well you might give yourself a 30 second introduction, maybe a minute, but not too long. In that introduction give them a reason to listen to you. Why should they listen to you? Because of your skill set, time worked, etc...
Then just like a college paper, start with a intro, main body, and conclusion. Introduction tell then what you are going to tell them, then tell them in detail in the body of the presentation, the summarize for the conclusion.
DO tell them how much time you are going to use
DO NOT go over the time you said, unless you ask permission. Any time spent beyond your initial time statement will be wasted, people have already checked out and know you went over.
Those are some tips from me, I'd love to hear a follow up on how you did.
Don't hesitate to record yourself, you can learn so much from that. Video if you can, so you can see what you are doing with your hands and face and body.
You and I are in the same boat, I work SAAS and worked my way up from Techical support to a regional sales rep. You have to learn to TURN OFF technical knowledge. It can burn you. It is good to know but you need to switch gears and be all sales. The tech knowledge will never disappear, but now equip yourself with Sales Skills. I like all the books presented here. Most sales books offer similar information, but many are dry reads. I love this guys sales writing, he wrote 4 books, all together will tell you how to sell, period. http://www.amazon.com/Winning-Sales-Presentations-Differentiators-Presentations/dp/1932908110/ref=pd_sim_b_3?ie=UTF8&refRID=0FECJR4E7SEJPGJV848D
Good luck! Welcome to a much better life than IT.