There are many variables to consider when working on getting back to the job market. Training and gaining new technical skills are good ideas, but you can probably leverage on your existing skills set, areas of expertise and strengths, and use the right keywords and accomplishments in your resume to highlight your value proposition and to get more calls from recruiters and hiring managers.
Please see this link for tips to keep your IT resume up-to-date:
As far as technical skills, I learned from other QA and software testing professionals I've been working with recently that the following skills are in high demand:
JIRA, HP Application Lifecycle Management (ALM), Quick Test Professional (QTP), Bugzilla, Selenium, Load Runner, JMeter and Soap UI.