Finding the right Page Builder tool for your business can make your life a whole lot easier; there are quite a number of them around but they vary in complexity and ease of use.
Here are two that I've personally used and recommend...
Create sales pages and manage your entire sales funnel
ClickFunnels is basically a software that lets you design and create sales pages, landing pages and it lets you manage your entire sales funnel. It's not necessary when starting out, and there are a lot of options for this type of software but ClickFunnels is up there with the best of them.
Simple but powerful landing page creator
Lead Pages is a simple but powerful landing page creator; if you want to have a beautiful page for your special offer, and don't have the experience to create one from scratch, Lead Pages is a great option.