All I have right now is a practice amp. I need something for small to medium-sized gigs, and I am pretty much a techno-stooge, so whenever I read amp reviews that refer to "cones" and whatnot, I'm lost. What's a good amp range, do you think? I will be doing some alt-country but hopefully some hard rock too. Also, since I'm not a gear head, simplicity will be important. I've heard good things about MarkBass and also Hartke Kickback amps. Can anyone recommend these, and which models? Other suggestions? Oh- also, I am not a large person, so portability is good. And I'm willing to spend some bucks on a quality amp that does the job well and will last for a while. And lastly, can anyone recommend an "Electric Bass for Idiots" book or website so I can overcome my ignorance? Thanks mucho!