Hi
I am also a director of a ltd company and honestly it isn't that difficult. You do need at least one director and a company secretary as Paul-T said but the secretary can be anyone and doesn't have to be involved in the business, they also don't have to have any sort of renumeration, a spouse or partner is usually the best bet, as you are already ltd I assume you already know this.
I belive all businesses need an accountant but I only use mine for end of year, corporation tax and personal returns, you will need an accoutant as a ltd company to produce your end of yr accounts and these must be filed with companies house 9 months after your end of year (so for you it would be Feb 22nd 08). You will also need to complete a return every year to companies house, I do this myself on line for £15 and it is very straight forward, this is just to show if there have been any changes in your shares or the catergory your company operates under. Visit companies house web site it's very useful.
But again as has already been suggested there are no substitues for an accountant, seek advice.
Fox