Yes, Shane is right – Software-wise you will find a lot of third party plug-ins, like Nattress, Magic Bullet, which will ad grain, and do some CC, which will let it look more like 16mm.
But the main thing for film look is the lens, so either one of the DSLR cameras, or if you use the EX1 and you have still budget – get a lens adapter and a good film lens with it.
If there’s no budget for that, try to milk the depth of field of the onboard lens of the EX1, meaning, get away as far as possbile from your subject, Zoom In – so you get the Max of Depth of field.
In the worst case, you can ad Depth of field in the post in AE – check here the terrific tutorials of Andrew Kramer on https://www.videocopilot.net.
Greetz,
Sascha