For those asking, here is a diagram showing how my home studio is set up (Download the PDF to zoom - homestudio.pdf)

Overview:

iMac 24″ - Runs all web apps for audio input (Skype, iTunes, GarageBand, etc.) and encodes ShoutCast stream via NiceCast

Stanton Mixer receives the following inputs:
Heil PR40 Mic, Sirius Radio, XM Radio, Pioneer CD deck, iMac Audio

Stanton Mixer outputs to:
Marantz audio recorder, Stanton headphones, Apple HiFi (serving as studio monitor), and Rolls PreAmp

Rolls PreAmp - Amplifies signal into iMac line in

M-Audio Keyboard - MIDI controls for GarageBand

Drobo - USB storage