The best tip i can give you at the moment is to pack a good rain coat!!!
The state of the ground will probably be somewhat of a shock to you, it is soft nearly everywhere in England and Ireland at the moment, so make sure you find horses with soft ground form.
Regarding trainers and jockeys to follow:
The must ofcourse is Aidan O'Brien and Kieren Fallon (both masters at what they do)
Declan Mcdonogh (spelling?) is also a very good jockey and he will give all his mounts the best possible ride.
Will you be attending any National Hunt meetings? if so, follow any horse trained, owned or ridden by someone with the surname Mullins or Walsh
Also, if you see any horses trained by a certain A J Martin........... watch out
i will leave Brockguy to explain why.