My first reptile was a Leopard gecko. I was stuck between a Leo or a Crested gecko, in the end I went with a Leo but I'm working on getting that crestie.
Leopard geckos are great pets with their endless morphs you can get a really beauty but I've always been a sucker for their natural look. They're easy to look after but you should only get one after doing the proper research, look at many different sites as there are some people with dangerous advice on many web pages. This of course goes for any pet.
I love my Gecko, he has such a character and is a real pleasure to have.
Good luck with your first lizard!