[linux-audio-user] simulating guitar distos at linux

Hi, I'm searching a way to record a good guitar distorsion under linux. I already have a distorsion effects pedal (Zoom GFX8) which sounds quite good connected to a good guitar amplifier. However when I connect it to my soundcard I loose the pre-amp, amp and speaker effects and it sounds crapy. Do you know any program/LADSPA plugin/other plugin to simulate those steps? Specially I would like to simulate well the speaker/cabinet. I would like get rid of the amp + mic to record... But it's not easy for the disto style which I search (Mesa-Boogie style, reference sound from bands: Refused, Funeral for a Friend, Poison the well, Thrice...). Do you think it is possible? What do I need?