CORBA's not rocket-science, but why does it feel like it is? This is a perfect first-look at CORBA, and includes both C++ and Java examples. It even shows the SAME example done in both languages (guaranteed to remind you why you like Java SO much more than you like C++). If you're already programming in CORBA, then you should start with one of the other CORBA in Java books and skip this one.
And if the whole Dummies thing embarrases you (and you can sure spot a Dummies book a mile/kilometer away), get over it. On the other hand, having a client catch sight of your "Negotiating for Dummies" book might hurt your chances just a bit. Ditto with "Sex for Dummies".(cowgirl May 1999)