Welcome and enjoy!
I'd suggest that you go to the shop just to pick their brain and feel all the different molds they have available. Being new to the sport I wouldn't suggest starting with really wide rimmed, hard to control discs. After you find the discs that feel good in your hand (especially a putter), come back to the DGCR Market Place forum and buy a new/used disc from a fellow member at a greatly reduced price. Used discs are better than new IMO. New discs always break in and season into a different flight pattern and if in better plastics that they will maintain those flight characteristics for a long time. Buying retail discs is like buying a new car where the car is instantly worth thousands less the second you drive it off the lot.
Also, check out Disc Golf Review forum for excellent technique and top notch forum advice as well.
Ultimate and disc golf are polar opposites. Ultimate uses "the Spirit of the Game" as an honor code to enforce fair play. Disc golf just ignores fair play and lets anything go. - Three Putt