In reply to StefanB:
Good luck with the triathlon my few pence worth,
get some open water swimming done asap (I am going in for the first time this year at the weekend)
Get on your new road bike, too late for tribars so just spend some time on the bike going at a decent pace (90 rpm) and also decide if you are going clipless.
practice bike to run a few times (bricks)
practice transition a couple of times but just relax it takes as long as it takes, have an option of a warmer top gillet etc as a cold weather option (make sure its easy to put on I can remember taking a slim fitting overhead cycling top that was a complete nighmare to put on when wet from the pool)
one bottle of not to srong sports drink and a gel on the bike , with a gel in reserve for the run should be more than enough
as has been said your run times and comfort with swimming will mean you shouldn't be last in fact you should make the the top 40% (at a guess)