are you on logic? the amp sim on logic is perfect for that kinda thing.
if not then take a look at amplitube 3. little pricey but worth EVERY penny.
303 thru orange amp and cab with big muff distortion pedal = stunning.
yes mate , im using logic 8... is that the guitar amp pro????? not really getting the sound i want tho....unlesss im doing somenthing wrong.lol....
thanks for ur the advice by the way..