Lowepro Primus AW. Paid $80 via Adorama @ Ebay.
Pros: nice colors, well padded. Weight is 4.5 lbs.
Cons: material is rough on skin, adjustable chest strap has a tendency to slide vertically, limited space for camera lenses, no dedicated notebook compartment though a 11.6" notebook will fit in the upper compartment, unable to find much use for outer exposed compartment (though it is fine for small jacket).
Main compartment has space for 1 camera with lens attached, 2 non attached lenses.
This is the side compartment access. Honestly, I used it rarely as fit is tight even with non-gripped 7D.
Here is the unprotected outer compartment. It is deep, but not much can fit much past 8 inches or so if it is thick.
Bottom tripod holder
Top compartment. It is quite roomy...
Even a small notebook (Acer 18030T) or netbook should be able to fit.
Gear list: Canon 5D3, 24-105L, 100L macro, 70-200L 2.8 IS II, 580EXII; Gitzo GT1541T, Gitzo GM3551, Markins Q3T.