Okay so I'm looking to step up my recording process by getting a mixer or audio interface to plug into my computer. The problem is I have no clue where to begin. I know that my computer has usb slots and im not sure what firewire is but i thiiink it has it. And I also bought sonar So I just need to get an interface. Any suggestions? Don't need anything fancy just a 4-track or 8-track..
Schecter Fan Club!

My gear:

Schecter Hellraiser Avenger
Epiphone Les paul Slash Signature
Ovation 2778LX
Boss DD-20
Dimebag Crybaby from Hell
Kustom Quad 100DFX
Vox AD100VT-XL
ive heard really good things about the tascam us122-L. Im in the same situation and everybody keeps telling me to check it out. It also comes with Cubase LE. That might be some help.
My Gear:
Fender Am. Standard Stratocaster
Gibson SG Special Faded
Fender Hot Rod Deville 410
Visual Sound Jekyll & Hyde
Boss DD-20 Delay
Boss Chorus
Dunlop Cry Baby
Planet Waves Pedal Tuner