+1^^ Chris has pretty much nailed it.
If you're after a more "hi fi" sound, based on what I've heard, then I'd swap out Markbass for Tecamp / Eich.
Markbass cabs tend to roll off the treble a touch, giving a warmer but less crisp tone which some folk really like; others describe as a 'blanket' over their cabs. They are, however, significantly cheaper than some of the other cabs listed above but certainly still considered "high end" by your average non BCer!
The other option instead of two 1x12 is, of course, a 2x12.
For me, I've found my preferred 'compromise' between power handling, portability and great tone in my VK210 LNT (1200W AES, 44lbs). But the BF SC I bought off you still wins out for rehearsals and pub gigs for sheer convenience and my band can't believe how light it is!