Canon Stuff Again!!!

Hi Everyone

I am getting closer to getting the Canon 7D and the 300mm prime lens with the extender so I thought today I would take a trip to Calumet in Edinburgh and get a quotation.

I was able to hold the 7D which was brill but they had no lenses on display for me to try.  The quotation was £40 dearer than WEX for the same order but I have been offered an extended warranty on the camera body and 300mm lens although on my quotation sheet they have only mentioned the lens so will have to double check.  I am preferring Calumet and the assistant did say that if I was not happy with the lens I would receive a full refund ie no postage hassle if returned within 14 days!

My first question is are these extended warranties worth it or should I save the £40 at WEX and get a free bag too!

My next question - has anyone gone through Gatwick or Heathrow and seen the 7D in the duty free?I know the big white lenses are not there!

I saw a monopod and head that I liked.  Has anyone bought them or could anyone recommend something better.  I liked the tripod as it has extending feet which if you are standing still for an hour it could help the weight a bit. I have used the amazon sight just to show you all what I saw.

http://www.amazon.co.uk/Manfrotto-Midi-Ball-Head-RC2/dp/B002PWHOYG/ref=sr_1_11?ie=UTF8&qid=1371058733&sr=8-11&keywords=manfrotto+heads

http://www.amazon.co.uk/Manfrotto-682B-Self-Standing-Monopod/dp/B000186QGI/ref=sr_1_1?ie=UTF8&qid=1371058792&sr=8-1&keywords=monopod+manfrotto+682b

Thanks for all your help again.