Has anybody heard the Boston Acoustics BA7800 4.1 speaker system that comes with Gateway computers? Are they any good? How's the bass and clarity? Also, how would they compare with, say, the Klipsch Promedias? I know Klipsch pretty much blows away any competition, but the Gateway comes with the Bostons. I would like to know, though, if anyone has had any problems with the Promedias. I've heard they overheat and sometimes even stop functioning because of this. Any advice on these or maybe a good speaker system that you have is appreciated.