I play much the same mix of music as you do Ibanezman, with a bit more scope on each end of the scale (light and heavy), and I'm in much the same boat as you at the moment. I bought a Mesa Roadster head thinking it'd be ideal for what I wanted, but ended up returning it because it was just too loud!
JVM might be just out of the price range I suspect, which might not be such a bad thing (in my opinion) - when I tried one I was totally underwhelmed. It might be worth you holding out until the Blackstar Series One amps are released, just to try one out. I've no idea what the price point is yet, but the combo will be 45 watts, droppable to 4.5 with a few points in between. Could be just what you're looking for. If you only played towards the lighter end of the scale, the Laney Lionheart would be a good bet - I've tried one extensively, and they sound lovely.
Spec wise, an Orange Rocker 30 combo could be good - all valve, 2 channel, price around £600. I've not tried one though - anyone help out here?