I am sorry that you did not get much help in this area. I have not seen any users on this forum with these certification. I actually only know one person personally that has the CISA certification....and I have not talked to them for a year. I am sure as more people come to this site or one of the current members take this exam, we will be able to help more.
I was actually looking at these before I was instructed by my company to take the CCIE R/S lab by the end of the year. So, when I am done with it....maybe I can help more.
Until then.....there are enough certifications here to keep you busy for a while.