I take all of my infrared images with a HOYA R72 filter attached to my camera. I started out using a FujiFilm FinePix S700 and now have a CANON EOS450D. I use the kit lens which I have just found out can focus wile the filter is attached....still have to compose the shot first though.

I have written a tutorial on "How To Do Infrared" which was published in Australian "Digital Photography & Design Magazine". I also have a version on my Redbubble site. If you follow this link it will get you there.

www.redbubble.com/people/florentinepogen