I just saw the EOS-M with the 18-55 and flash for $299.99 at the local Costco. Now I am even more tempted. I am most likely going to be moving to some sort of mirrorless really soon and have been waiting for Canon to expand their line. I would love the APS-C quality image that I got with the 7D and 60D in the small package for travel.
$300 is about what it would cost to buy just the lens and flash. The camera is nearly free. Even if you decide to upgrade the camera when the next version is available you haven't lost anything.
Checked my local Costco, no such deal unfortunately Not on their website either.