Search Google for "best powerpoint templates" and you'll get a number of modern designs for sales pitch decks, portfolios, business plans, and CV/resume presentations (like these).
Not sure what a CV/resume presentation is? If you're asked to give a presentation as part of a job interview, you might start with some introduction slides. CV/resume presentations put your CV/resume into a presentation format.
Infographics have become popular in almost every field, but in more traditional areas, like science and academia, I believe there's a bit of a line to draw.
You may notice I have an infographic on my About page as well as on my LinkedIn. Personal websites and the media feature of LinkedIn are great spots for some well designed graphics. Just make sure they are informative, and look good when display-cropped on LinkedIn.
While PowerPoint is still the go-to for slide presentations (sorry, Prezi, you tried but you just don't cut it in science), Powerpoint presentations have come far since 2003 clipart and animations.
There are what I'd say are the Golden Rules of PowerPoint. You'll find these repeated over and over again in articles.
I'll summarize them here so we all start in the same place:
For a great read, check out "How to Give a Dynamic Scientific Presentation" from Elsevier.
I'm going to expand on these with a few tips that will take your PowerPoint presentation from good to great.