Have you started back up excercising metalaaron? 5 days a week... sounds like you were in great shape! Kudos. I never want to have to start over... pure agony the first few months... so unless injury puts me out of commission, I plan on keeping it going. I keep entering races to keep me going / motivated.
I do a lot of cross-training to keep from burning out... running, biking, Nordic Track cross-country ski machine, weight lifting via a Total Gym and a Soloflex, basketball... guess that is my usual suspects.