Before i buy... (help)

[MattJay]

Hey guys 1st post here so go easy on me

Considering buying a Virus C and have a few questions beforehand.

I have a Focusrite saffire pro 14, m-audio Oxygen 49 keyboard (usb only) and an imac.

Say if i bought the C could i have it setup as how i think i could below?

1. Get a usb to midi converter cable and run my usb keyboard from that to the virus > then a midi cable from virus to saffire pro 14 > then pro 14 runs to my imac on firewire?

or

2. The same as above but run one of the virus cables usb to midi to my mac and then my keyboard can be independently connected to my mac also using usb

i'm not even sure if the above would work as i'm useless with cabling!

thanks in advance and any help is appreciated