Found this free SWOT Analysis generator at http://www.wikiwealth.com/swot-analysis-generator
For other SWOT creation software tools checkout http://www.businessnewsdaily.com/6828-swot-analysis-tools.html
Creately, Gliffy and SmartDraw all get mentioned when the topic turns to SWOT. Found this interesting because these are all diagram/chart tools rather than marketing software. Meaning sure you can purpose them as part of your marketing but they don’t integrate with other marketing processes very easily. I’d like to see something as part of a planning suite, or marketing suite.