Hi there,
I'll give you my two cents worth:
1. If you're suffering a decline in performance even with extra calories and sleep, then maybe your overtraining. You should have about 4 weeks off a year of lifting no weights. This can either be in one go, or in say 1 week off every 3 months. So try taking 1-2 weeks off and then go back to the gym (although if you have full blown overtraining syndrome you may need alot longer to recover).
2. Your legs can take around a week to fully recover if you work them hard enough, so try only training them once a week.
3. Your routine depends on your goal: what do you want to achieve and for what. Personally my gym partner and I have started using a westside routine and found it to be really good.
www.westside-barbell.com
www.elitefts.com (esp. 8 keys articles by Dave Tate)
www.deepsquatter.com
Read as many articles as possible, cause its the only way I found to get my head round the program (something to do on your rest weeks!). Although a power lifting routine, you can modify it to suit sports improvement.
Hope that helps
mac