Amazon doesn't seem to pre-order toys, which is the annoying thing about having to keep rechecking their site for random new additions.

Like this week's new items....
Generations Voyager Whirl $25
Rescue Bots Rescan Optimus $11 (just found in Australia for AU$19
Rescue Bots Rescan Bumblebee $11
Rescue Bots Rescan Heatwave $11
(Rescan bots were just found in Australia for AU$19 each, and are on pre-order at BBTS for $30 for the three)
TF4 tin lunchbox $13 (and this TFPrime tin lunchbox is still available too $13)
IDW Dark Cybertron Vol 1 TPB $

In the last month...
IDW Beast Hunters Vol 2 TPB $14
Rescue Bots DVD Vol 3 $14

As for older items...
Retribution book $7
Generations Voyager Rhinox is still available for $25
Generations FOC Voyager Blaster is on sale for $17
Year of the Dragon Optimus is finally showing as being almost sold out, so get him now if you ever want it for a "low" price. $85
Mine are still in transit, but the Playing cards with Gen1 box art are on sale for $7