There are many options for deck designs; what you need is someone who is reputable and qualified in your area. I'd look in my local yellow pages and see if any have their own websites so I could check the out.
You can find free online deck plans at different sites, such as www.deckplans.com or www.homeplans.com. You can also design your own deck plans at www.timbertech.com.
You can find some awesome design plans from websites @ www.decks.com/ try to consult deck designers. You can also design your own deck if you want it to be a unique deck.
www.barplan.com is a good site with lots of plans, and furniture options to build for your deck bar. http://www.timbertech.com/design-tools/default.aspx will let you actually design one on the computer.
Consult your local deck and patio contractors. Also check Angies list to find out what people have to say about those contractors and to compare prices.
If you are looking for a good website for patio design, I suggest that you check out a website called timberteck.com They offer a free deck designing tool.
Finding wooden deck designs that you like is easy by browsing home decorating magazines. When you find the right design for you, then contact a professional remodeling company for a free consultation. Make sure the contractor understands exactly what you expect in the deck design. If you have neighbors or friends that have a wooden deck that looks good, you could ask them for a referral. Finding a good contractor is half the battle.
Eplans website is a great resource to help you with free deck design for your backyard. The website will also calculate the materials needed to build the deck.
I'm not a good designer but I really would like to get a new deck. Is there any particular deck designs that doesn't cost too much?
You can get an outdoor deck designs at deckplan.com. They have so many designs that may fit in your style and personality. Or maybe you will find the design you have in your mind there already.
You wouldn't be able to really find a person to design your deck for free, because that is their job, and they probably need to make money from it. You can find a free deck plan though, on Ehow.
I thinkg Design-a-deck it's what you are looking for, it is a software free where you can build your dream deck with hundred of different material to choose from and you have to buy anything, create your dream desk and then go build it yourself.
You can find deck design ideas in home renovation or deck building books. You can find them in home improvement stores such as lee valley or home depot. They do not only provide the correct building techniques but also very stylish and modern designs.