from the blog:
overheard recently in #moose
CardRaider
Version: 2.0 ||
Release Date: 2007-12-21 ||
License: Commercial with demo
($19.95)
Developer: Ecamm Network
The easiest and most affordable way to recover lost photos and movies from your digital camera, memory card or thumb drive.
CardRaider's familiar Mac OS X interface makes it simple to detect and unerase pictures from your memory card. Instant electronic order fulfillment means that your photos will be recovered within the next five minutes, and our free demo will let you try before you buy.
Just one click and watch your photos and digicam movies come back like magic. Find the ones you're looking for and quickly recover to your computer, or send directly to iPhoto.
Tags: card , restore , photo , rescue , recover , unerase


Opinions:
I'm just going to suggest that this is not the "most affordable way" to recover lost photos on the mac. That would definitely be an award for Exif Untrasher, which is freeware.
http://www.bluem.net/downloads/exif-untrasher_en/
On the other hand, CardRaider looks pretty cool, and easier to use. So maybe it is the easiest at least :)