Dear Moderators/Members

I will am going to work for a company that has Oracle DBs running on same number of TRU64 and Sun Solaris unix boxes. I do want to take a unix sys admin class, gurus (MARIST, PANDO, SREDDY et al), do you thinks I should take the TRU64 or the Sun Solaris sys admin class? Are they fairly transparent in moving from one platform to another? I need all the help I can get

Thanks in advance