Please do not sell your bility to create maps short. One of the things that we do best here at The Guild, The Mappiest Place on the Web, is bring people from the first baby steps of mapping to the dizzying heights of map mastery. All it takes is some effort from you and some friendly advice from the folks here 'bouts. We have a humungous pile of Tutorials that can take you from here to there, and the WIPs forums are where we can help you get the map you want.
I really do suggest that you give it a go, as it has been said before that the only one to create the map you want is YOU.