Creative Market-Design Tools
I've recently used some high resolution images, fonts and illustrations from Creative Market. They are beautiful and the files are very high quality. I have been very impressed with the quality of tools I've used. I highly recommend Creative Market for any materials you might need to complete a project or to find inspiration. The artwork is top notch. Some of the watercolor illustration is amazing and the prices are very reasonable.
Free Design Tools
Creative Market also provides a bundle of 3 items (illustration, fonts, templates or images) free, every week. Sign up and get access to free goods every week.