Wireframe Starter Kit
Even though there are other programs available to do wireframes in I started using Illustrator about close to 10 years ago and have stuck with it. In the end it comes down to work flow, I am comfortable in illustrator and it is where I can do my work fastest. This is a little kit I put together for myself that has most of the repeated elements that I use in creating a wireframe. It is vector so all the elements are scaleable and easily manipulated with out getting into to much detail. Feel free to download a copy.