"So what should I be asking for and what should I be receiving?"
What I should be asking for:
Around 25% more than what you want and meet in the middle
What should I be receiving:
From my experience, a lot of Partners... especially if you are 3 out of 10 or above
Boboom, takes a bow for his use of double entendre.
On a serious note, there are plenty of sites (and old threads) explaining salary bands. Look at your own and decide what your minimum is to leave your current role.