Another big guy tri'ing...

Like a few others here have written...a month ago I'd not even thought about searching for a triathlon site, let alone planning on competing in one. I've been a weight/powerlifter all my life, avoiding cardio activity like the plague. However, in the last few weeks I have come to the realization that I am not gonna be a competitive powerlifter/bodybuilder at my age (34) nor will I be able to do much with this body at this weight unless I do something. One of my best friends just did his second sprint triathlon, and was so excited about it, then laid down the challenge for me to compete with him next year (probably in June or August 2005). Mouth spoke before brain thoguht, and voila! I now have 10-12 months to physically/mentally prepare for this. I've been reading several of y'alls journals here and they are very motivational, and should help me stay focusd when I am wanting to stay in bed. My plan is:

a) Couch to 5k running program (12 weeks)
b) Change lifting to 4 days/week, using a higher rep/lower weight scheme and move away form Olympic style lifts (I am keeping squats in though) and more towards DB's to lessen risk of injury
c) I have a mountian bike to start basic riding in a few weeks once I start getting my running in place
d) By January find a Master's swimming course so I can learn to swim better and start getting into swim shape (outdoor pools here don't open til May/June)
e) learn alot about myself and have fun :D

Any help/suggestions are greatly appreciated