of course it was my opinion, that's why I posted it.
The behringer is fine, so long as you don't use it for any digital/analog conversion at any point.
mpx3 or extreme.
My suggestion would be try and find one used. There are some spectacular deals to be had. Gabe Logan has a great mpx3 he's been trying to sell for what seems like forever.
My admittedly limited experience with large databases is that it's MUCH MUCH MUCH faster to load the tables, and then index them, rather than index while loading. But like I said, it's limited experience. I ran the systems, I wasn't the DBA.