I think Calista is pretty for a girl. You have to be careful with boy's names though. Well, you need to be careful with girl's names too but it's easier to find an unusual name for a girl that won't get her made fun of. Naming a child is one of the very most important things you will ever do. A person's name is their first impression and if you choose an unusual name you may be setting your child up for a lot of heartache. Trust me, I have one and so does my husband. We're 28 and 31 respectively and we still hate our names. We will always hate our names. The mild resentment we feel towards our parents because our names is nothing compared to what we have to deal with every time we meet a new person. I have a name (Valerya) that isn't spelled the traditional way, but even if it were people still wouldn't be able to pronounce it or spell it. My husband's name is Forrest and he hates it because it's a hippy name and people don't understand it right away.Names are a big deal, make sure you choose one that will be easy for your child to deal with when learning to read and write, throughout school and into adulthood. It's irritating to have to repeat your name two or three times every time you meet someone new. It feels terrible to cringe every time someone tells you how pretty your name is (oncfe they finally understand it) because of all the trouble it has caused throughout your life. It's incredibly heartbreaking when other kids make fun of your name in school because as a kid you can't do anything about it, all you can do is wonder why your parents chose it in the first place.