I'm applying to Statistic PhDs for Fall 2011. I've been admitted to my top choice school and a safety school and still have 7 programs to hear from. While I am thrilled to be in at my top choice schools, I do wish the financial package was a little higher (TA position at ~$15,800 for the 9 month school year). At my safety school, I've received a $21,000 fellowship for the first year (so no need to work) and at least $16,300 TA and RA positions in the following years. I also haven't yet heard from my remaining schools, but some Googling has indicated higher financial packages at those schools (assuming I get into at least some of them). Has anyone ever negotiated their financial package? If so, how successful were you? Any tips or pointers?