Welcome and Congrats!! One thing I love about DW's is that they can be as expensive and as budget friendly as you would like. Some resorts have packages that allow you to have beautiful ceremonies and receptions without breaking the bank.
I would suggest coming up with a budget with different categories : ceremony/reception, rings, travel/hotel, dress/attire, invites/std etc and figuring out how much you would like to spend in each area. Think about what you think is important. For example, we decided to splurge on a great photographer but we may not have floral centerpieces. In the beginning we created a budget and ( so far) we've been good with not going too crazy. I hope this doesn't change as time gets closer. I've been holding off buying little items that may add up( decor, favors, oot stuff) until we get a better sense of how many ppl will attend. We've had quite a few say they would like to come but only time will tell.