Hi, I'm getting into home recording at the moment. What would be a good music programme to put on my laptop? Preferably under £50 if possible. I need it to have a drum and bass simulator. I intend to record my guitar tracks with a microphone rather than using an amp sim. I'm not 100% sure what I need to get though. I've got a Boss BR900CD, would I be able to plug my mic into that, then the Boss into the laptop to record onto the music programme? Or should I buy a mixer of some kind.

Thanks in advance for the help, guys, much appreciated.
Gibson SG Standard, Gibson SG 60s tribute, Edwards Les Paul, Fender Telecaster, Epiphone SG Custom