What is the output level of the mpc? I would expect it to be line level. Then you can just use the 8 line inputs of the 003. If not, then it seems to me you have to try all three options and see which one is best. Don't be surprised if you don't hear much difference. There are a lot of people on the internet who describe huge differences in the sound of mixer-level preamps like the ones you have. There are also people who describe the image of Elvis in their morning toast. Try the options yourself and use the one that sounds best to you.

best reply i got yet..thanks.

and yes the mpc is line level, so i think ima give it a try.

so i go straight into the 003.. then into the topaz to mix

or should i mix itb?

I would personally mix in the box. The added D/A-A/D conversion isn't going to help your project unless you have an exceptional mixer and an exceptional A/D converter to go back into the box.

In other words, unless you've got a Neve 88 series console and an Apogee Rosetta, stay in the box.

really?

so i shouldnt come back out to the topaz?

its a real quit board and sounds good too.

i was thinking otb then into the finalizer96k to master the mix.

then hit pro tools digitally.. no?

It's your project. If you can make it sound good, go for it. I would do two mixes. One itb and one out. Try and keep them similar and see which one you like better.