B&H has the new Mac Pro in stock and shipping in a couple configurations. Check the quad-core here at B&H Photo and the six-core here at B&H Photo.
If you missed out on the first batch of Nikon D4S units, it looks like some retailers have received a fresh shipment of the D4S. Check it out while it remains in stock at Amazon and Adorama.
The new Sigma 24-150mm f/4 DG OS HSM lens is now in stock for Canon DSLRs. Check it out here at B&H Photo.
B&H has the Sony A7R in stock in limited quantities. Check it out here at B&H Photo.
The Canon Rebel SL1 is now in stock and shipping from major retailers. Find it at the links below.
Canon Rebel SL1 (b0dy only) – B&H Photo | Adorama | Amazon
Canon Rebel SL1 w/ kit lens – B&H Photo | Adorama | Amazon
B&H has the new Canon Rebel T5i kit in stock with free shipping. Check it out here at B&H Photo.