Paul,
Thanks a million for your helpful advice. It is great to hear from someone who has recently completed the distance.
Your advice about breaking the target down into sub goals is key to going the distance. During the last few training sessions I was keeping myself motivated by focussing on the 'estimated distance after 30 mins, 1 hour, 2 hours etc.
This worked fine until I rushed off for a comfort break at 20k and got back only to find the machine had gone to sleep in my absence, so I had to start all over at 0m - that was a bit of a kick in the teeth.
* Pace - again very helpful. I was going at 20-22 but found myself edging upto 24 and actually being confortable with this pace.
* 500m split - I have been aiming for 2.20 but this has resulted in my barn doors being blown by 30k - for the next few training sessions I will definitely keep it to 2.25 - 2.30. As you say there is not point struggling when you are still less than half complete.
* Food - Drink: 4% diluted SIS electrolyte drink is my preferred method of liquid intake. I will prepare about 4L before the row and see how it goes. Food is another matter altogether - probably bananas or grapes... Camelbak is out of the window - extra weight...
* Concentration will be a problem - I thought music would be my saviour but finding 8 hours of the right type of music is a challenge. I might get the audio version of The Lord of the Rings and bung that on my MP3 player.
* Seat padding - OUCH

Suffering this morning from last night's rowing activity. Tried one of the Concept 2 seat pads which was OK but I have some bubble wrap which I will use in addtion to the seat pad and padded shorts.
* Temperature - doing it in a gym so they will provide me with a fan.
* Rests - I am taking short rests at 10k, 20k, 30k etc although I need to find out for how long you can stop rowing for before the machine shuts down and sets all figures to zero
Thanks again for your advice - I will take it all on board. I know I will feel a huge sense of achievement upon completion. My only worry is that I will feel so knackered that I wont be able to fully enjoy a couple of pints of Guinness after the event!
I'm in Guildford but doing the row in my work gym in The City. Walton is good - know it quite well. Its' on a couple of the cycle loops I do.
MarcusJ