For the record, I'm usually listening to Amplitube through some AKG K240 MkII headphones. When recording, I definitely go back and tweak things since I can hear my un-amplified picking and strumming pretty clearly in the headphones, so it's worth going back to see how it sounds without them!
Technically, I do sometimes just play through the grotty, old consumer-grade Logitech speakers hanging off my computer
but they're nothing to get excited about!
I sort of mean to pick up some iLouds when I'm in the US sometime (there's quite a mark up, locally!
), but I might have to put an AXE I/O on the list first! I can get by all right with the headphone, after all ....