Was going to the TT this year but have decided to do the Manx instead, been quite a few years since I did the Manx....What are the dates for it please. About time I did some marshalling too, who do I contact to get on a course? Any advice greatfully accepted.

Good man!
Firstly, dates Practice week starts 16th August, and racing finishes on the 29th August.
Marshalling: http://www.iomttma.com/
Check dates and availability with them, and if you are coming across for training, let me know as I can find you free accomodation.
You will thoroughly enjoy the Manx, I am sure, and I know you will benefit yourself and others by getting the marshal training and putting it into practice... you'll certainly be glad you did.

cheers for that, will look up t'other site right now.