In most "normal" years, if you can hold out looking for a rental in the late fall or winter months, especially around the holidays Thanksgiving and Christmas, you normally find lower prices, better condition, and better location places.
Try to avoid looking in late spring and summer as the competition is normally most fierce in these months.
Contact me if you'd like a good agent to assist you. Visit my website at LasVegasRealEstateConnection.com for details on rentals and my contact information. Thanks.