I have to disagree regarding "TFP" - some of the demands that are made under that moniker are pretty scandalous. Understandable perhaps when the models are dealing with guys with cameras looking for a cheap thrill, but (giving you the benefit of the doubt) you are not in that category. To see what NOT to agree to see the Google ad that occasionally appears on these pages as supposedly "fair".
However I strongly agree with BetteT that you should be really selective about your models. A great model, with no make up, in jeans and a T-shirt will make for far better photographs than a so so girl with all the styling you can throw at her. Get ALL the ingredients and you will be flying!
A quick pointer as to what should be non-negotiable, whether paid, testing or TFP'ing (if you must
1) Never agree to share, sign over or otherwise relinquish copyright in your work. By default it belongs to you and only you. In most countries it took a long time for photographer's to be granted the same legal rights as other artists - don't throw those rights away. If you want to let someone else use your images issue them a licence.
2) Never hand over unretouched digital files. Even if are printed by someone else, if they look bad you will still get the blame. Let them choose a few, retouch those and put them on a CD.
3) Don't be afraid to put it in writing. If you are working with an agency they have terms and conditions and won't let their models sign your release. For independent models and everyone else on the shoot put it in writing who gets what and where the pictures can be used and by whom.
... not what you probably want.
