Thanks Doug, I'll see if Walmart will take a return if it's ordered online and picked up in store in case it doesn't fit for some odd reason. The Swiss gear backpack 17" backpack is one of the ones that I tried, and the one that I wanted most but the laptop won't fit in it. The sleeve for the laptop in the swiss gear backpack is too slim, it's wide enough and it appears to be long enough, but not deep enough due to the height at the back of the laptop where the fans are. Actually, even trying to put the laptop into the swiss gear backpack and NOT in the sleeve still doesn't fit, it can't be zipped up as the bottom of the laptop is too wide for the backpack and well, just not deep enough.
Thanks for the info, unless somebody else comes along that has a backpack that fits this laptop, then the one you linked is likely the one that I'll end up getting.