Thanks so much for the replies, guys! I'd been going 6 days a week, feeling really good, but figured that was wrong, somehow. The distance coach at the school I worked for got, er, dismissed this summer for general incompetence, so I need and really appreciate the advice.
tri-man, I'm all about the stability ball for core stuff, but I haven't done much since May.

I also like using really light weights and using it as a round bench, prone or supine, to do upper body stuff. Time to get to it.
No worries Darrin, I'm a land mammal. Road biking, though, is good fun. Congrats on the recent half :thumbsup:
2Young, that book sounds great, I'll check the library. Gonna wait on that half, though.
Steve, don't make me jealous, Mr. Florida Man.

Yeah, maybe a couple outdoor runs would be a good idea, I just get paranoid, find I can't relax. Visions of wrenching an ankle dance in my head. Will give it another shot if the weather stays this warm into the weekend.
El Floppo, I'll make sure to check in. Good idea on a recovery week if I feel like something's not right. Not going to start speed work until April or May, going for a great time in some relay triathalon in August with a couple friends I won't want to let down. Current plan is 5 days a week cardio, mostly treadmill with some elliptical/stationary mixed in, 30-40 min at target heart rate, big run on Saturdays, big rest Sundays. Core M/W/F at home.
I'm getting excited typing it all out.