I would also agree about the route, we have had a couple of scary moments getting into Limehouse whilst Limehouse to Brentford/Teddington is a doddle.
As others have said you will need VHF if you are over 45' and on your own, the PLA regs are at:
http://www.pla.co.uk/display_dynamic.cfm/i...site/navigation
Also worth checking your insurance, ours states that we must make the journey in company with another boat.
Also BW, IWA and SPCC have produced tideway guides which are recommended reading.
A few pictures of Fulbourne on the Tideway:
http://www.pbase.com/timlewis/excel_trip_january_2006
http://www.fulbourne.org.uk/th0506/index.html
http://www.pbase.com/timlewis/protest_crui...07&page=all
Enjoy yourself - its prob the most exciting trip you can make on a canal boat!
Tim