Ask Engadget: Best sub-$100 camera/laptop bag?

We know you've got questions, and if you're brave enough to ask the world for answers, here's the outlet to do so. This week's Ask Engadget inquiry is from Joseph (he's from Atlanta) who needs a camera bag for his semi-professional photography enterprise. If you're looking to send in an inquiry of your own, drop us a line at ask [at] engadget [dawt] com.

"I've recently gotten into semi-pro photography and I've come to the problem of how to transport all my gear. I'm looking for a camera / laptop bag that has enough space for a DSLR body (Nikon D90), a 15-inch laptop, 3 or 4 lenses and a speedlight or two. My budget can't stretch beyond $100 and I need it to be durable and weather-proof. I don't have any preferences with style (backpack, messenger bag etc), I just need a large, affordable bag to carry all of my gear. Thanks for the help and keep the gadget passion guys!"

We don't think you should scrimp too much on a bag, given it'll be carrying $3,000 worth of kit. Your host uses a Lowepro Fastpack 250, costing $99.95, its only drawback that it has no space for a tripod or cables, so you have to sacrifice a couple of lens slots just to tote your power lead. Other staffers suggested using a standard bag with individual Crumpler pouches (a suitable Crumpler like the "7 Million Dollar Home" is $150) or the KataKTD, which sadly doesn't pack a laptop sleeve. How about you, commenters? What's the budget bag you wouldn't let your DSLR venture away from? Together, we can work it out.