LOL I'll try to help.
*meat is good for you, we need it
No you don't need it, An animal that can only eat meat needs it. You're getting confused between want and need. Need is when you can't survive without it (I think we're living proof that you can).
* in an indigenous lifestyle animals were eaten and it was all good
Are you living an indigenous lifestyle (or a 3rd world country lifestyle)? Or are you in a situation where you HAVE TO kill animals to eat meat?
* soy crops etc are worse for the environment that meat( vegans are doing more harm than meat eaters)
I think I heard somewhere that animals are being fed soy and other crap... it's like the same thing. (plus you can bring up the green house gasses with the cow point)
* animals and plants are both living creatures
Yeah but one feels pain and suffering and the other is proven not to.
In the end it's the life that's lived that most important.
*i eat meat because i like it, enjoy it, it tastes good( so there)
WOW. Pretty lame reasoning... any excuse would do. (LOL... crap comeback!)
[ugh it's like give them 1,000 reasons not to and all the need is 1 reason to do it]
* we've done it since the dawn of time
It's called evolution, it's time to evolve from out cave man state.
haha. Okay. my crappy reasoning. But this site is good:
http://www.animalconcerns.org/external.html?www=http%3A//ar.vegnews.org&itemid=20020817225021333131&itemname=Animal%20Rights%20and%20Vegetarian%20Ethics
GOOD LUCK!

hehe