I've got one of those "kinky" nibs but just can't get on with it. I pefer a straight nib and turn the paper on an angle instead.

I do attend a Calligraphy class and have picked up a few tips. The nib is very important...they can be very scratchy so you have to find one that writes smoothly. Also use gouache instead of ink - it flows better and gives a smoother finish to the letters. Copperplate is probably like all calligraphy - attention to the letterforms and lots of practice is the key. Haven't looked at any books so I'll check out amazon.

My tutor has told us that a Copperplate master calligrapher is coming to our class to do a demonstration in a few weeks time. Bound to get something from that!