Hi Guys (and gals)!
I have finally moved and I am in the process of adapting my setup to my new practice/work/office space!
Until now, I have used a mixer with a built in USB interface, but in my new setup it will be slightly different.
My setup is as follows:
All sources (bass, guitar, keyboard, mics etc) run into a Yamaha mixer (through DI's when neccessary). From the mixer I have various outputs going to different amps, monitors etc, and a L + R going to another mixer that controls the inputs/outputs to the rest of the house etc.
I would like to add an interface into the equation, but I have realised that I am really out of touch!
I was thinking that I would like to hace a permanent L+R running to the interface connected via USB to the PC (running Win7) but also have an extra input for plugging in bass etc directly, without having to change connectors.
I was looking at the M-Audio Mobilpre MKII, which has a switch to choose between the rear inputs and the front inputs, but I have read on various occasions that M-Audio "aint what it used to be!"
I also liked the Yamaha Audiogram, but read also that the direct monitoring is hard wired, so you always get a clean signal (not that I usually use effects, but who knows!)
I am now looking at the Focusrite Scarlett 212, which only has 2 inputs.
So now, my questions to (you) the experts!

Is there anything negative about running the instruments through the mixer before the interface, or would direct be better?

If I were to use aux sends to the interface, instead of the outputs, I could choose which channel I wanted to assign to each input. Is this a good or bad idea?

What are your opinions on the Scarlett?

Better alternatives?
Thanks to all for any input you may have!!