I hope the Eribulen helps. Let us know. I posted some information about drugs for skin mets in the clinical trials thread awhile back. One post was about the University of Washington Tumor Group study using Abraxane and Immiquimod cream and I think the other one was about Pazopanib and Tykerb. I am hearing good things about the Marianne Trial for T DM1 which combines it with another drug. Maybe you can get that later.
It also seems that her2 breast cancer was discussed alot at the San Antonio Breast Cancer Symposium
http://media.curetoday.com/sabcs2010/
Since you are there perhaps you can get some transcripts about those discussions to share with your oncologist after you return home. Take care.
Take good care of yourself. I have my fingers crossed for you.