The comfort and quality of your trip depends on many factors. That's why it's so important to have as many things in your favour as possible, especially equipment. Good equipment will help ensure a safe, healthy outdoor experience.
Before buying tools or equipment, look for reputable stores with knowledgeable sales staff, good product warranties, and quality materials. Talk to experienced campers about what products worked best for them.
Equipment Lists
The Anti-Pandemonium Packing List
The Zen of Tarps
This 1994 Leader article provides excellent advice on how to string a tarp.