Hi, I'm about to start gigging with my band for the first time and I need an amp. These obviously aren't arena shows and I should only need an amp loud enough to cover a bar or a small performance hall. I was thinking maybe the size of a 2x10 or a 4x10? A firend in a similar band has a 600 watt mesa-boogie head with a 6x10 speaker, but he can only use it on like Level 4. Is it worth it to get something where I can't even use half of the power? Then there's the question whether I should get a combo or a head/cab setup. As for combos, I was thinking maybe about an Ampeg BA-210sp. I read through some of the reviews on this board and overall i got the impression that y'all weren't overly impressed. At my local store I was playing around with a BA-115 which I really liked, but they didn't have any 210s at the time. Thanks for any help you can offer.