Korg Mono/Poly

Hey Dudes!  I'm trying to record my monopoly and a mic onto my ibm 
laptop.  windows.  80GB.  I've got a nice amp that i could use.  i 
haven't bought any software or a soundcard yet.  I'm on a budget.  
does anyone have any suggestions?  should i go through the amp output 
or is there a way to record directly from the synth?  never done this 
before.. thanks a bunch!