sudo dfu-programmer at90usb162 flash minimus_avr_usb_at90usb162_16Mhz.hex
11560 bytes used (94.08%)
...and i can program on my MAC now too!
now to figure out how to compile this suckr and i'll be even more self-sufficient. wohoo!
and maybe get LED working on the maximus.
and then figure out how to tell what version of openmanager i have installed...as it still shows oct3 for the install date which isn't quite right.