Hey guys, I may be designing a banner for a school event. The banner size will be 6ft x 12ft (72" tall x 144" wide). At 300dpi, this is a HUGE file, and after everything is said done, the size will be in the gigabytes. The publisher prefers vector files, but will accept .ai, .psd, and .pdf; however, I'm most comfortable using Photoshop rather than Illustrator. Would I be better off using a different size? Should I suck it up and use Illustrator instead?