The pre-production system we saw didn't have an Ultra silent 250 Watt PSU but it was pretty.

The machine that started shipping today have this 250W ultra silent PSU, a 6 in 1 card reader that we had opportunity to see on this preproduction model along with an AGP and a PCI slot, support for FSB 800 Intel CPUs and below, as well as SATA with Raid - not at all bad for a small box.
As for connectivity. the machine additionally features integrated 10/100 LAN, three FireWire 400 ports, six external USB 2.0 ports, 6-channel audio with SPDIF digital I/O and ATA100 legacy device support.
There is a space for one DVD / CD drive and for one hard drive.
Even the new fan the system we saw certainly seemed a todger less noisy than the previous Shuttle that we had on test. µ