Grinder is a batch processor for footage from Canon DSLRs. It can convert to ProRes, add timecode, and create low-res with window burn proxies for offline editing. You can also use it to conform (not convert, i.e. no frame blending or motion interpolation) clips to one frame rate, so your 30p and 60p shots can become slow-mo clips at 23.976fps. It's $49.
The Scott Simmons at the EditBlog has a blow-by-blow article, and explains why you'd want to spend $49 on this tool: Magic Bullet Grinder grinds your DSLR footage into a more editable format