Okay, I'm sure this has been beaten to death, but I could use your help. As the title of the thread suggests, I'm looking for a bag for my sexy Tibook. I've pretty much ruled out the option of messenger bag big enough for just my computer and just laptop sleve on account of my being absent minded as hell and being very likely to leave them someplace i shouldn't. So really, I'd like to just carry one bag around with me. And I'm not sure I entirely trust a sleve. That leaves me with the option of backpack/messenger bag that's also big enough to carry a bunch of books around. I'm looking at the spire backpacks, which seem pretty good. Anyone have as Spire backpack that they're dying to tell me about? Hell, anyone have ANY laptop backpack they're dying to tell me about? I have plenty of crap I lug around school with me that I don't want to crush my 'book...so the major points i need are a)storage space and b)protection of my laptop from said crap. for what it's worth, i've got a 15" Tibook. Hope this isn't beating a dead horse too much. Thanks guys.