yeh i did the sprint and loved it, hence following on, it can get quite expensive, buying kit and entering comps, although if like me you love it the money can be found.
a lot of sprint ones are done in pools so no need for a wetsuit, i lost a lot of time changing into cycle gear, then running gear. i have a tri suit now which saves a lot of time, worn under the wetsuit, into transistion remove wetsuit, jump on bike do ride then back in off bike trainers on then run, saves loads of time.
if you want a list of what you'll need let me know and i'll do one for you. my bike cost me 450 quid which is fine at the mo, going to get a new saddle later today as my one hurts a bit. i am saving at the mo for one of these for next years iron man!!
http://www.planet-x-warehouse.co.uk/acatalog/Custom_Stealth_Pro_Carbon_700C_TUBULAR_WHEELS.html
mmmmm only weighs about 16 lbs!!
some of the shops allow you to hire a wetsuit for the season, and as we are half way through it that might be an idea for you.
http://www.farnhamtri.org.uk/ might be local to you
http://www.phoenixtri.co.uk/
richie