I found this earlier today.
Buy.com is selling 4 Kingston 1 GB cards for $22.95 shipped after rebate.
http://www.spoofee.com/r.php?site=bu...768&adid=17662 for the cards at $41.95 and you'll see the $19 rebate link just below the picture of the 4 cards.
$41.95 - $19 = $22.95 and you get FREE shipping!
Not the best memory card available, but not bad either, a really good deal at a really good price. And yes, these ARE Wii compatable.