Change your meta gem to Relentless Earthsiege Diamond (and make sure it's activated). Also, change that crit gem in your helm out for another strength gem (as well as upgrade the blue gem in your belt to an epic, this soon before Cataclysm's release gems should be dirt cheap, if not, spend emblems). Fix the enchant on your shoulders (unless you're enchanting for resilience on purpose?), upgrade your bracers (and enchant them). Enchant your chest piece. Also, the frost emblem relic isn't very good for DPS... I mean, top end is better than the triumph one but, the triumph one gets up instantly and, in any fight where you have to change targets or hold DPS or what not, the triumph one outperforms the frost one.
Most importantly gear wise though... Rune Forge your weapon... Fallen Crusader will push your DPS up quite a bit.
Make sure you're using your Hyperspeed Accelerators on EVERY cooldown possible during the fight, time it with Heroism/Bloodlust if you can.
Sorry I can't help with rotation, I've never played blood DPS. =D