**HERE I COME TO SAVE THE DAY!**
lol, sorry couldn't resist.
Tanganyikan ciclhids are some of the most interesting fish available in the hobby. Unfortunatly most of the time they also demand a higher price than most other cichlids. That is really their biggest drawback.
How long is your tank? I don't think I would try Cyprichromis in anything under 4 foot long. Agian, they aren't to bad priced for a single fish, but they are a schooling fish so they need pretty good numbers and that can get a little pricey.
I envy your water. I would love to have a PH that high. How hard is your water? I'm cursed with soft water and a low PH, so I have to buffer my tanks.
Julies would be a great fish to start off with. They are very entertaining to watch. With the help of a special swim bladder, they can swim and hover in any direction. Mine if often seen hovering nose up right next to a log.
Calvus are beutiful, but adults are rather costly, and juvies take FOREVER to grow. I found some great looking inkfins a while back for $15 each which was a decent price for them.
To get your feet wet in Tangnayika cichlids I would sugest that you take it slow, and understock. They need really clean and stable water to do their best.
Something that might get the enitire family interested in this tank is to get some shellies. These are smaller fish that live inside empty snail shells, and most are super easy to breed. You could start with a small colony of Neo. multifaciatus. They should be fairly cheap as long as you don't get wild ones, and don't require a large amount of teritory. They get just a little over an inch, but will try to defend the shells and attack fish much larger than they are. But because of their small size rarely do any real damage to any tankmates.
If you go with julies, be sure to stick with the dwarf julies. They are J. ornatus, J. transcriptus and most think of J. dickfeldi as a dwarf too (I do). Agian, these aren't to expensive, and can offer some nice color to the tank.
Calvus are a pretty laid back fish and not to teritorial unless breeding. But if you get young ones, it will take several years for them to mature so you won't have to worry about that for a long time.
One fish I would stay away from is Neo. brichardi, and really most fish of the Neolamprologus family if you want a community (except most shellies). They are excellent fish, but most of them are best suited to a species only tank. They defend teritory very well, and most breed often so they are always on high alert.
I think a tank with Calvus, julies and smaller shellies would make for a very nice and interesting tank. We have a few good profiles of some Tanganyika cichlids in our profiles, and you can search about the web some for different species to see what interests you. Tring to learn about cichlids can be a big task for a beginer because not many have common names. Just don't let the big words scare you off and ask if you have any questions.
-HTH