The photo right out of the camera looks incredibly red.
I use Bibble to convert my raw files – during the conversion I set the white balance to “click white”, and select somewhere on the grass or a leaf. The idea is to remove the red tint from the light leaves in the image, . . . → Read More: Infrared Workflow
I got my replacement hot mirror filter, IR-cut glass, from lifepixel.com and following their instructions for a 300D
. . . → Read More: Converting a Canon 300D to Infrared
As part of their EOS 20th anniversary, Canon are running a cashback offer util the end of December. If you bought (or are going to buy) any Canon SLR equipment its worth checking to see if you can get some cash back: