Cyaqt, there's a distinction between being an extremely skilled player and doing the impossible. I understand that you have an interest in bolstering your image on this board, but pulling 11.000 DPS as an assassination rogue at 70 is simply not possible (unless some bug exists that I don't know about). A raid buffed combat rogue with BiS gear, consumables and Bloodlust might reach those kinds of numbers if they can cleave with Blade Flurry.
To argue that you are so inexplicably skilled that you deal damage equal to or higher than that of other geared 70 rogues while using an off-spec with the wrong weapons is more than a stretch of the imagination. The skill cap for most PVE rotations is very low, and while a couple of exceptions exist, it just so happens that assassination is regarded as having one of the easiest and most forgiving rotations in the game. If one has read the EJ article and practiced for a couple of minutes, it is not unreasonable to expect that even an unexperienced player could perform it at 98-99% efficiency.
Of course, if I'm mistaken, it'd be easy for you to get some buffs, hit a dummy for five minutes and post a screenshot.
To the person who recommended using double 1.8 daggers, that would be detrimental to your DPS. Using a fast off-hand has a massive impact on the number of poison procs, which outweighs the mutilate damage lost by several magnitudes. This holds especially true now that assassination no longer has access to offhand specialization. Your main hand should naturally be a slow dagger.
This is an approximation of BiS gear for assassination with spec and glyphs included. I can't be entirely sure of a couple of items, but with that set you'll be capable of dealing close to the maximum theoretical DPS. As for a rotation, the above posts both contain some measure of faulty information. I would advise the OP read
this section of EJ's assassination guide.