I'd skip the extra glutamine. Here's my supplement list based on relative importance and function. Let your wallet be your guide (although if you don't have shoes, a belt, and a decent coach at various intervals I'd start there first):
-Creatine
-BCAA's w/ leucine and citrulline malate
-vitamin D
-fish oil
-Beta alanine
-HMB
-D-aspartic acid
-L carnitine
-Betaine HCl/probiotics
-multi vitamin