i recently got a DAW from ADK, paid around $1900 for it i think. i got the acoustic treatment along some other noise reduction options. brought some friends over to show them my mini-studio (10x10 or thereabouts). standing by the door, i thought to myself, "that's weird, why is my computer off?"
it wasn't. not asleep either. just really, really quiet. you had to listen for it and then you could hear it, barely.
the most important thing you can do in home recording is work on your recording space. having a nearly dead quiet computer addresses the most common source of noise in home recordings. it's the one thing you can't turn off. a DAW builder can do that for you, dell and HP not so much. it costs extra but it's worth it.