I think you would be fine with either list. I would however take out the powder blue and go with 3 yellows if you are going to do more than one. From what I have read and heard, with two you run the chance of having the stronger specimen killing off the weaker. If you go with one yellow I would go ahead and do the Powder Blue. Just because they get ick on most cases does not mean they are going to be a lot of trouble. For a new aquarist, I would get the clowns first, and wait a while and see if there is anything else you want. Also, get the yellows all at the same time if you are going to do a group because otherwise one might get territorial. Good luck and keep asking questions, it will save you a lot of money in the long run!