Your best bet would be to go over the main considerations of having a wood deck before proceeding to have one installed, as outlined in the following handyman article:

http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Home_Improvement_Zone_Decks_Porches_Some_Things_To_Consider_In_Planning_For_Deck_Installation.htm

Also, you may find it convenient to get free estimates by calling to local wood deck contractors in your area, or, alternatively, clicking on the link ("Find Local Deck...Pros. Get Up to 4 Quotes Now...Free") for free local estimates/consultations from local contractors found at the end of the above-linked handyman article.

Good luck!