I too have weims and am about to show my pup for the first time this weekend

I attend ringcraft on a weekly basis, it is good but like you say they may not be weim people and there are lots of tricks that experienced weim people have up their sleeve ;-)
If you can spend some time with your breeder then ideal, I spent a whole afternoon with my breeder talking, learning and practising and I learn't more in one afternoon from her than I have by attending ringcraft for the past few weeks. We also keep in touch and I often ask her questions which she is more than happy to help out with, she will also be there for my first show to give me a few handy hints.
Patsy Hollings has a very good book out called The Essential Weimaraner, she talks about numerous things including showing, I've had the book for about 4 years now and I still refer to it.
Good luck.