The music I play more is prog rock, hard rock and blues. It's hard for me to tell you what I "want to sound like" because I'm still stuck in the 15W combo phase so I'm now beginning to experiment. I never gigged before, but soon I should start playing in bars with the band we're forming now.
You can check this buy/sell/trade site http://www.olx.pt/lazer-cat-26
to get an idea. (search terms amplificador=amp, coluna=cab, baixo=bass)