SSL Certs acceptable?

I am wondering if there is a list of acceptable SSL Certs I can use for Novell products. I was looking into a GoDaddy wildcard cert but was warned against doing so. Working with school systems money can be an issue and I would like to secure several of my products at the same time. It is obvious that to get the full functionallity of ZMM SSL is required.

Anyone have suggestions for this type of an issue?

Thanks

Richard