When I entered the triathlon the goal was quite simple; complete a triathlon. Now, after only a few weeks of training, the goalposts are shifting

Now, there are different types of goals. Firstly there's the public goals "I just want to take part and try to enjoy it, anything else is a bonus." LIE. Then there's the private goals, that I admit to myself and perhaps share with my wife "Yes, I'd like to get a good-ish time - maybe 1h40m". Then there's the secrets goals, which I can barely even begin to type, the goals that I try to suppress everytime they try to raise themselves from my id. "Down! You horrid private goals - I can't do my first triathlon in under 90 minutes! I can't run 5Km in 23mins and I can't swim 750m in under 15 minutes!" I know I can't do these things, yet they keep nagging their way into my thoughts "What if you trained really hard, like twice a day, surely then you could do it..." "SHUT UP! Stupid (no longer) secret goals."
Then there's really odd secondary goals: I read somewhere that Lance Armstrong's resting heart rate was 34bpm or similar. I know mine was 64 before I started exercising again and for some reason I've become bizarrely obsessed with a goal of getting it to 48. I've haven't the faintest idea whether this is a healthy goal or how hard it will be...currently (just give me a minute)....56....halfway there.
I also reckon that it's going to be easier to swim, run and cycle around the Lakes if I'm carrying as little weight as possible so I thought, lose a few kilos and make the job easier. Starting weight: 84Kgs, OK I was a little chubby I thought, so losing 10% might be reasonable. After a few weeks of running, not too often or far, but the chubbiness has approxiamately halved but the weight has dropped off, current weight: 74Kgs. This presents a quandary - what is a realistic target? I think I'd rather not admit just how out of shape I've been.
Other odd goals include; being able to do 50 crunches, 50 press-ups (have postponed that one - it takes too much out of my arms for swimming) having a nice set of running gear that I look good in (also in secret goals) and being able to cycle with my socks off.
Well, that's enough goals to be getting on with I suppose.
Edit 18/09/08:
My resting heart rate is now 47!
My weight has stabilised at 74kgs, though I have started some weight training so some of this will be additional muscle (I've also eaten far to many pies) but I can only do 30 crunches at a time.