Microspot will announce Mac OS X versions of its applications at Macworld Expo in San Francisco.

The company will roll-out OS X versions of MacDraft, PhotoFix and MediaAssistant.

MacDraft is an application for architectural and engineering drawing that has an integrated database for creating custom reports.

PhotoFix is digital-image editing software that runs on just 5MB of free RAM, while MediaAssistant is a cataloguing tool that and creates and manages slide-show presentations of multimedia files.