I'd say either brand new Monitor Audio RS6's or the BR5's
If youre ok with 2nd hand i'd look at B&W 603 S2's, 603 S3's or the 604 S3's if you can find them on Ebay.
Depends on size of playing room as well, floorstanders may be too much but with such a powerful amp, they'll all work very well, especially the M/A RS6's
I've got them and with music like SOAD, Linkin Park, Metallica, Tool, Iron Maiden etc they do very, VERY well!