Noooooooooooooooo!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
"Some" have parallel port MOTU's working OK, many however do not. It would probably be OK if you're running it on a 98 machine, but the reports you'll read online make the 2k/XP drivers for the parallel stuff look like sort of a hack job to get people to shut up, and the results across various systems don't appear to be very consistent.
Here's some older but still valid info (I doubt the "unified" drivers have changed all that much anyway):
http://caps.pcrecruiter.com/MOTU/
BTW- I have a MicroExpress parallel and have hit many of the same issues that others complain about. I do however see more people who have managed to get MTP's going via parallel, but that may just be from the quantities. IMHO, a mere "piece" of the headache you may be in for, if you're one of the ones it
doesn't cooperate with, would make you wish you had never heard of it (or the mysterious MIDIFlyer).
Hope the USB's do better, but if I get back to needing >2 simultaneous ports, I'll probably end up with the 8x8 ESi.
Sorry for the negative junk,
George