Lisa Gade takes a look at the e-Luminator2 Booklight, the FlexiStand, Latitude Jacket (my favorite), Icon Sleeve, Executive Jacket and Go! Jacket. She likes them all and you can find the review here.
Keep in mind that M-Edge makes these same cases for the Kindle 2 and you can read our own reviews of some of these cases here, here, here, here, here, here, and here.
I recently got the Latitude jacket for the PRS-505/600 including the booklight and I’m very pleased.
This %20 discount may still be valid: http://www.mobileread.com/forums/showthread.php?t=67816