I'd like to enter a race (probably a 5K) over the Christmas/NY holiday to keep active and keep motivated. Thing is, looking at a lot of the race listings around then, a lot of them seem to be fells or cross country. As I'm still very much a beginner, would this type of race be totally unsuitable? (My current runs usually involve a mixture of road and meadow.) Also, what different types of kit might be needed?