I'm using SBL's in front of a CDX2/82/hi/250, and after looking long and hard there's not much below $10k that's made me want to upgrade. The JM Lab Utopia Diva is incredible, but at $12,000 it bloody well should be! I do like the taller Dynaudios, and am thinking of having an at-home demo of the Contour S5.4 (around $6000) and Confidence C2 ($9000?).
Still, all of these are a huge amount more than the SBL's cost me last year and would have to be absolutely phenomenal to justify the cost. I'd recommend you look into getting a pair of SBL's just to try out for a month or two, and you can easily sell them for what you paid if you don't like them.