Running/Lifting and Protien shakes...

[gimmetheloot]

Basically I lift differnt things everyday and then run. I dont know exactly how much benefit, if any, is gained from drinking a shake after lifting. However I do know that it needs to be drank within a 1/2 hr of the lifting. Is there anyway to achieve this without making running essentially impossible due to cramps and such?

Is the protien even worth fretting over?

Thanks