My first concert photos - Please C&C

Hey everyone,
I shot my first show this weekend and would like some feedback on how to improve, what is good, what is bad and the like. All local bands. I use a Canon 30D and my 50mm 1.8, my first couple of shots I tried at 3200 ISO which came out way too grainy, so I dropped it down to 1600, which improved the shots greatly, but the grain was still very visible. I problem I had was metering...I shoot everything manual but with all the changing lights, it was pretty much a guess at every shot. So I mainly kept the aperature at 1.8 mostly and adjusted my shutter speed to an average of what I was seeing as good shots. I hate that I was just guessing at this, so if anyone has any tips that would help out greatly.
I previously have read up on Dwights sticky and that helped a lot. This was a small club where the edge of the bar and the edge of the stage leaves about 20 feet, half of that filled with people, made it tough to get around. A zoom would have been handy, but I dont own one fast enough, does anyone use a zoom for concert photos? and if so, which one?

Please feel free to critique these, if they suck, thats ok, but tell me why they suck...Looking to get better so I turn to your all for that.

Thanks
Cory

Full gallery can be viewed here... http://fixedfocus.zenf​olio.com/f757603539/


1. 50mm 1.8 1/100 Manual 1600 ISO

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a little dark (i understand), but they look really good for yourfirst time.

It would be easier to give feedback if they were numbered. I suggest you read the FAQ sticky as it has many good suggestions and information. Nice colors and framing. But you have three in a row where the vocalists' faces cannot be seen because of the microphone ... always a problem but you have to work around it when possible, waiting for that rare moment when they quite sucking on it.

for first time well done indeed, First and second are my favs apart from the extremely harsh angle on it. nice colours tho.
well done for first time

Cheers.

Nice shots! Hard to do in that lighting.