S5 and Presentation Remotes

I use s5 for all my presentations, and I’ve been giving a lot of them the past couple years. Although I’ve been tempted, I haven’t yet broken down and purchased a presentation remote, because I’m not sure any of them will work with:
* A mac
* arrow keys in a web browser
So, all you s5-presentation-givin’-standards-nerds out there, if you use a presentation remote, which one do you use, and do you like it?