MONTY LEE  Yes you can change it in iPhoto bit only after the import--meaning all the dates are wrong initially and subsequent "filing" by iPhoto. It is much easier to do it before the import asnd results in a much cleaner import into iPhoto.  
(Version 2.0.2.50)

MONTY LEE  My wife's digital camera died and when she shot new pictures it put the creation and modified dates as 2038. I tried several utilities to batch change the dates. Many did not work or did it only one at a time. I tried File Buddy 9 and since I was new to the program, I did not find the trick to batch change ALL the dates. I could do it to the folder or one item, but not all of them. So I tried File Sheriff 2 and in 15 minutes had it figured out and changed the date on over 100 pictures! So I like the ease--especially for a novice.  
(Version 2.0)

FLASH1296  Not a bad appl' as it does what it is supposed to do.

The price is reasonable.

However, if you need this capability, you should buy FILE BUDDY, as that amazing application does what File Sheriff does and SO MUCH MORE.  
(Version 1.2.1)

MIKE ABDULLAH  Reasonable enough idea for a program I guess, but lacking in polish:

* The "Comments" box keeps the arrow-style cursor when you hover over it.

* The date pickers do not use my local, British layout. Every other date on my system is displayed correctly - why not this one?

* You can't view a file by dragging it to File Sleuth's dock icon. You can drag a file onto the main window, but visual feedback is ever given that this is going to work.

Oh, and with the MP3 rename facility, it feels rather like this feature has been chucked in to add value to the program. It would be better in a separate app.  
(Version 1.0)