Hi,
I'm having this dilemma, too.
Specifically, I'm down to trying to decide between the Motu 828 MKII or the Presonus Firestudio. I was going to buy the RME Fireface 800, but have decided that I cannot afford this at the moment.
It seems to me that there are advantages and disadvantages to each of these two units.
For example,
The Motu has 2 mic. preamps/instrument inputs (XLR/TRS combo), and 8 balanced/unbalanced TRS
The Presonus has 2 instrument inputs, 8 line inputs ,and EIGHT microphone preamps. On the other hand, the Presonus appears to have one, dedicated input/output that shares S/PDIF and MIDI duties, while the Motu handles these with separate sets of inputs and outputs.
Another issue which is relevant, and which I was reading about on the forums on Presonus's homepage, is that Presonus hasn't apparently updated its drivers for many, many months. And now they even have a new product out, called the Studio Tube.
See this here
http://www.sweetwater.com/c683--PreSonus--FireWire_Audio_Interfaces
There has been much consternation over Presonus's lack of responsiveness in producing a new driver. I even saw a Beta driver on one site (possibly the one at the above link).
Motu's drivers are supposed to be rock solid with Mac and very good with PC's.
Is my understanding accurate of the differences and relative advantages/disadvantages of the flexibility of hardware options of the Firestudio and 828 MKII?
GVDV