Both share the distinctive Predator orange and black casing design cues and oversized vents, with the AG7750-U3222 also having a moving front panel. It can be specified with up to four 2TB hard-drives, while the AG5900-U3092 has a 1.5TB HDD as standard and three extra empty bays.
Elsewhere there are plenty of USB 2.0 ports, HDMI, gigabit ethernet (two on the more expensive machine), eSATA and FireWire. Full specs in the press release below; the Acer Aspire Predator AG5900-U3092 is priced at $1,349.99 and the Acer Aspire AG7750-U3222 at $1,999.99.