I have a USB 2.0 card in my sawtooth, and deep sleep has never worked if anything (except USB 1.1 devices) is plugged into it. Mind you, I don't think I've tried it since the upgrade, because I've just got used to unplugging things.
Barney.
P.S. to Tesseract: For my machine and similar ones, deep sleep is normal sleep. However, if you put in an old PCI card which doesn't support "power off mode", they go into shallow sleep, which leaves the PCI powered up and the fan on.