Professional Power Point Template Design

I have been using the same powerpoint template for 3 years... it works, but needs refreshing and a more professional edge to it.
I need a PowerPoint expert with strong design skills to build a new template that can be easily adapted.

I don't need annimation or transitions, just good clean and simple pages layouts that can be presented or printed.

I need this to be completed by 25th June.
There are a total of 20 slides.

I will send the current pack to interested bidders who are able to provide examples of the powerpoint work they have done.