I own a slingshot 200AW but this has been collecting dust since I got the fastpack 350.
Inside the fastpack I have:
Nikon D80 body with lens attached (70-300VR when shooting birds, 50 f1.4 when out and about
), the 18-70DX, 50 f1.4 and 70-300VR lenses with hood attached in the lens pouches, SB-600 in it's own case plus a diffusor.
In the upper compartment I have the battery charger for my EN-EL3e's, a charger for my AA batteries, USB-stick 4GB, 2 Nikon pens from Nikon solutions, 4 spare rechargeable batteries and a second EN-EL3e.
Looking to upgrade to a bigger bag, since the 350 is not AW (without cover) and is limited when I want to upgrade in lenses and body.