Resumes and cover letters for jobs in UK- what to mention about work status & do they use different formats?

Hi, I am a US citizen married to a British citizen. We are planning to move to the UK this fall as he will begin a PhD program in Scotland. I need to get a job and am starting to apply from the US. I ume I need to mention something about having legal permission to work since I'm married to a Brit (but can't actually get the form until I arrive there). We can't move unless I get a job first, though. What do I need to mention in my cover letter and resume. Are their resume and cover letter styles very different from the US?