Anybody want to help me out? Suggestions,Advice?

[foley]

Ok, I have MANY,MANY questions?
Fill free to help me out
I photo mainly rock concerts big arenas to very small bars shows.
Of course, at the big arena shows most of the time nobody can use a flash and the lightning is a lot better too.
My problem is small bars and VERY long lightning clubs.

I was wondering what some of you would suggest for the situations I have?
I'm trying to get more of a natural look of the lights and stage and skin tones when I shoot in these places.

Here's the Equipment I am currently using for small clubs:

• Canon EOS Digital Rebel
  TAMRON 28-75MM F/2.8 XR Di Canon Lens
  Canon EF 50mm F/1.4
  CANON 550EX SPEEDLITE FLASH 550 EX

I usually switch back and forth between to 28-75mm and the 50mm fixed lens.

I just recently bought a CANON Off-Camera Shoe Cord 2 for the EOS Speedlite. To try some experiment some ideas with to make the lightning look better (a lot more natural like I'm seeing it live)?

Which one of these would you suggest trying first to diffuse the flash and try to get the look I'm looking for?

• STO-FEN-GREEN AND GOLD OMNI
  STO-FEN-Omni-Bounce
  STO-FEN-TWO-WAY BOUNCE:

I was thinking the Gold would be a great idea and help to Skin tones.
What do you guys think? Any suggestions other than these? Make my own diffuser maybe?

How about for shooting promo pictures for bands (black and white glossies) also , what do you suggest?


Is the Canon EF 24-70mm f/2.8L USM really worth that much extra the money?
The results really that much better than say a TAMRON 28-75MM I'm using or a Sigma 28-70mm F2.8 EX? What do you suggest? And what would be your second suggestion?

Also, here's what I use for long shots (shooting from the sound board at arena shows )

• Sigma 70-200mm f/ 2.8 HSM
  Sigma 1.4x EX APO Extender

BTW, I could probably post photos of the lightining in these main clubs/bars I mainly photo at if needed.

Thanks for the help,
Joey

[foley]

Nobody wants to help me out?
Any help? To any of my questions ?

PLEASE

[Belmondo]

Foley:
This is an interesting question, but it's not in best board to get answers. You might want to post it in 'Talk About Photography' or even the EOS board (although don't tell anyone I suggested that). Your question will get a lot more viewings and hopefully, responses.