Bostonian,
It is important to get both SQUID and cardiac MRI. SQUID will only give you iron levels in the liver not the heart. The MRI (T2*) will give you valuable information regarding iron in the heart and heart function. I don't know if I ever got back to you regarding tests to be done before going to Oakland, I am so sorry as life has been extremely busy. Dru is usually very good at providing a full list of labs and tests that they require. Along with the labs they like to have an echo, visual and hearing tests done in the weeks before you go.
Let me know if I can provide you with any other information,
best of luck,
Sharmin