Firstly...keep away from Damsels. They're classed as "starter fish" but will quickly become highly aggressive and attack any new fish.
Personally, i'd draw up a wish list....a list of fish you want to keep and then work out the order you're going to stock them in.
As i have no details of your tank....size, filteration, skimmer etc, it would be hard to chose for you. However, you really can't go wrong with a small pair of common (or percula) clownfish (nemos !!!). Once they've settled in, you could think about a goby or a royal gramma maybe. Then a small dwarf angelfish or maybe a small group of chromis to dart about in the water flow.
If the tank is big enough, a yellow tang or one of the bristletooth tangs would be nice as would a blenny or two.
And....have a look through
http://www.aquarank.com .....choose a forum and ask lots of questions.
Good luck and keep asking