Help Choosing a WordPress Template?

Hey everyone, I have WordPress on my website, Scottsdale AZ Homes For Sale, and I hate the current template I have.  It's so ugly!

My problem is there are so-o-o-o-o-o-o-o many different templates out there to choose from.  I'm not even sure how to evaluate them other than what I think is pretty.

Any hints or words of advice you could offer me?

Thanks,

Ashley