Adorama has the Manfrotto Street Camera Messenger Bag for DSLRs for $29.99. The bag regularly goes for $100.
The Manfrotto Street Camera Messenger Bag holds a mid-range DSLR with a standard zoom lens attached plus 2 additional lens. It also has a laptop compartment and an external front pocket. This bag comes with Manfrotto’s 5 year warranty. Shipping is free.