Phew, below $ 100...I'd say, if you can get a deal on a (now discontinued) Lowepro CompuTrekker or CompuTrekker Plus (both AW), go for it.
If you'd be willing to spend a little bit more, I highly recommend Lowepro's Pro Runner 350 AW, or the Pro Runner 450 AW if you'd need more space.
Oh, and if you order it at B&H, Adorama, Amazon,...make sure to do it through the link at this page
to support Camera Labs
SSM/NEX-5/18-55 OSS/Lowepro Pro Trekker 600 AW/CompuTrekker AW/Nova 140 AW/Street & Field gear/Toploader Pro 75 AW. And a huge wishlist...My photos on Flickr...