Thanks so much man!

People tell me not to go into my soundcard at all, so I guess since I'll be going through my audio interface or a mixer it will have a built in sound card right?   Only reason I'd need a sound card would be if I used my mic on the computer right? I could use my headphones on the...

Spending limit is $500.   My gear I picked..   http://i.imgur.com/xZyGjdo.png   Someone told me to drop my mixer and just buy this - http://www.musiciansfriend.com/pro-audio/alesis-io4-4-channel-24-bit-recording-interface   (Because its 24 bit over the 16 bit mixer, he said I...