I've done IT contracting for years and the limited company/accountant thing was way too much hassle so I've switched to an umbrella company. They charge a fixed monthly fee and do all the tax and NI for you. Plus when you use an accountant you have to hold cash in your account and settle up the tax quarterly - that made budgeting a real headache for me, I was glad when I wound the company up and got my weekends back.
Also: HELLO again people - I closed my account here a while back when I decided to cut back on my internet forum usage but here I am again, returned to thrill you with more slide guitar versions of easy listening classics.