What's your style?
Contemporary http://houzz.com/photos/1917673
Do you want the focus to be on an actual bar for drink service?
http://houzz.com/photos/18164144
Or just a social space with a drink station setup?
http://houzz.com/photos/19268433

At the far end I would use stock kitchen cabinets and build a wet bar for entertaining needs, including any storage for items that the deck would need... Towels for sun bathing perhaps? Grilling needs? When you look in the room the whole wall would be filled.

Within the room I would buy a round ottoman and tray and place comfortable chairs around it for conversation as in picture one. I would also introduce two more accent chairs, such as in picture three for additional seating on either side of door, to allow for more seating. I like the thought of upholstery that can be thrown in washer and wicker that doesn't show dirt.

I like the idea of an actual bar with seating but not sure about having enough room for it. Our style is contemporary/ traditional/ beachy...somewhere between crate and barrel and pottery barn.
Never would have picked wicker but I like the look of those chairs and using the space as a transition from inside/outside.

One way to decide if you have space for furniture is pick out a few pieces at a furniture store and get measurements. Buy brown paper at the Depot meant to cover floor when painting. Cut out templates of furniture and arrange on floor of the room. My sense is you have plenty of space for seating. Maybe less than I showed but definitely seating. Good luck. Glad I picked a beach/wicker vibe for you.