http://www.sitepoint.com/5-free-html5-presentation-systems/
I used Deck.js for a recent presentation, mainly because it seemed the quickest to get up and running at the very last minute, and seemed to have the least jarring/motion sickness-inducing transitions (among the various options offered by each tool).
Warning: A common pitfall of "flashy" presentations is that even if you can avoid making it look gimmicky, the audience is too busy watching the effects and not listening to you. Is your intention to dazzle people, or optimize the amount of information your audience absorbs? https://www.youtube.com/watch?v=meBXuTIPJQk
I'm not sure what you mean by "hipster" - wouldn't that be whatever was available on Windows2000?
[1] Adam, from Adam and Joe. Joe Cornish went on to direct "Attack the Block". They started in a public access tv experiment; had a tv show; had a BBC Radio Six show (which is probably available online somewhere).
[2] BUG - http://adam-buxton.co.uk/ad/what-is-bug/
He does a bit where he voices-up Youtube comments, which is funny. http://youtube.com/watch?v=gx-WBaSNrTQ
I have been fiddling with the preview. Only basic features are available right now, but it may grow to be what you need.
It can be used to do much cooler things than PowerPoint, but it takes time.
There are some cool sample presentations that show what you can do:
https://www.youtube.com/watch?v=l3WrAk52e68
Note: It takes about 1 hour for each minute of video footage, but its worth it.
For just a better PowerPoint interface: Sketch. Keynote is also good.