Hi Louise,
I'm more into MTB but trying to do some road miles as well... I don't own a road bike at the moment but I'm sure we could sort out something.
I did my first ever Triathlon this year (Chichester 600m/42k/10k) and really enjoyed it. Iam planning to do more next year, the olympic distance is very appealing with longer swim. Do you have a specific race in mind that you are thinking of doing?
Where do you normally ride? I'm in Southbourne and my local off road stuff ranges between QE park and Goodwood.