Some cameras come with infrared capabilities, but if you don't have one of those,
here are a couple of editing programs I came across that you can use to mimic IR.
http://www.filetransit.com/view.php?id=7858
http://cubox.info/2007/10/23/special...e-editing.html
http://www.lightcrafts.com/products/styles/index.html
I bet Pesto will have some good advice on this!
Hope this helps!