Thanks to everyone for the replies, I can't really comment on each one, but I will do to KIPAX's as he raised some issues that I'd like to clarify!
The OP doesnt get to dictate what replies he gets in an open forum. .. as to reporting to the mods because someone broke some rules you made up.. well good luck with that...
Fair enough. The reason for writing that was to keep the thread on topic. Giving away photos for free seems to be a bit of a contentious issue, and I was just after advice, not a debate about whether I should or shouldn't, and it's ramifications on the photography industry etc.
the above is where your whole post falls on its backside.. if you dont agree with it then why do it? there your pictures..
Here's where I probably should have been clearer. I don't hold the view that photos should never ever be given away for any reason whatsoever. There are some cases where I would, and some where I wouldn't. For example, I've been sent the blanket pseudo-flattering messages on flickr telling my my photo has been selected for use on some profit-making website, and they'd like to use it for free. This I don't agree with, they're making profit from their site, so I'm not going to give them something for nothing.
I also wouldn't give photos away for free if otherwise they'd be paying for them. For example, I was asked to take photos at a uni ball, and if I'd done that (for free), the regular company who does it (for profit) would have lost out, and I don't like the idea of killing someone else's earnings because I'm after a little experience.
its almost a rule in my business that clubs like this would get them for free ... but then again unlike you... i dont disagree with giving pictures for free...

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As above, it's not black and white, and I probably should have elaborated a little, but that would have meant an even longer opening post. I've got in touch with their publicity officer, and I'm now waiting for his reply. I was pretty sure I was going to be giving him the photos eventually, I just wanted to make sure I didn't shoot myself in the foot by doing so and the advice on this thread will help me to make this work out best for me.
Ironically the reason I put a bit of emphasis on not wanting to give photos for free (albeit in a poorly explained way) was to try and stop the the pros having a bit of a go at me, I wasn't expecting the exact opposite!
Thanks for taking the time to reply,
Chris