i don't agree with alex... amp simulations are THE solution for home practice... don't sell anything because you'll need your amp to play live, after all...
many professional bands are using axe-fx directly through the mixer for serious live situations, but it's a really expehensive piece of hardware, so i suggest you a simple, nice and cheap Line6 PODxt or PODx3... with a bit of tweaking you can get many great sounds from those things, and discover the pleasure of playing with full gain whenever you want... you can use directly headphones or listen to it through your PC, to play on mp3s... it definitely changed my life, some year ago!
if you want to do some home recording it's way better than trying to mic amps played at minimum volume, and at least you know EXACTLY how guitars will sound like in the mix!