APiper,
What you said...exactly (except I'm now 31 and it's hitting me so much harder than turning 30 did)
I hear ya on the last 20 from the 2nd kid...it's so hard!!! (And, oddly, I'm with you. The only way I want a third is if I loose all the weight first)
It's been 5 years (!) and 2 kids since I last jogged, but I am now determined to get my prebaby body and endurance back! I'm starting tomorrow morning and, in my naivety, am pumped!
Good luck!