has anyone ever been PIC of a piper-cadet or warrior? what is your opinion on this aircraft? Also any tips on talking to ATC..i took ATC courses after ground school and I know what to say and how to talk, but as soon as my hands on that mic button all that can come out of my mouth is "Cherokee niner two one four romeo" and i freeze and i feel like the biggest fool....any hints from any ATC pros to shake that make fright ???

We have Ryanair flying in and out of my airport. And just by listening to them you'll learn (or I did) 
That's about the only good thing about Ryan...their 737's are kinda like the airport bullies 

I asked them to race me once, and we actually had a good laugh about it  8)

Never flown a warrior myself, though we do have one at the club i wouldnt mind trying out.  Has a nice lycoming engine just like the one on the Cessnas.  I know someone whose flown it and said it was great.

Tips on talking to ATC... always state who you are, where you are, and your intentions.  Even when talking on advisories, you should do this as well.  Theres no need to be afraid of ATC controllers, they are there for you and your safety, always remember that.  Don't worry if your tripping now, after a while, you will start to anticipate what the ATC will say.  

Heres also another tip.  As im sure you have flight simulator, just load up the ATC offline and try to mimic and understand what they are saying.  Its a great way to learn.  Although in real life, some procedures are different from what your flight sim does (IE: I fly out of CYYC sometimes, and we normally have to request a squawk code from clearance even for VFR), the procedures are still the same (who, where, intentions).

Another tip is to join an online ATC group for flight sim.  I would recommend places like eskyworld or vatsim (though vatsim has a few holes in their procedures due to software and efficiency).  You often get to hear real pilots on there as well, as well as experienced simulated pilots.  Its great fun, try it out.

I hope this helps.  Like you, I used to trip when talking to ATCs as well.  Having done most of my training out of an International Airport in class c airspace, it got quite intimidating.  My first few flights, I choked so bad that the ATCs even asked if there were an instructor on board.  Also got yelled at a few times.  Take it from me, you learn from it, and don't be discouraged if you do mess up.  Ive heard airline pilots babelling and getting  yelled at sometimes too, mistakes happen.  One of the things you will learn in flying is to relax and learn.  Pilots who claim they never make mistakes will never learn.

Forgot about the airplane question      ...

I've flown most of the Cherokees ( PA-28 ) out there (I think).  I took my intro flight in a brand new 1977 Cherokee Cruiser. I went for a span where I flew nothing but a Cherokee Archer. Got my complex endorsment in a Cherokee Arrow. Almost bought into a Cherokee Six.. and I'd have to check my log to see how many Warriors I've flown.

They're great planes and I've always thought they flew more like an "airplane" than a C172. Drawbacks are the single door and ground visibility. They're a little bit more ornery about loading (or 172s are more forgiving) when you try to stick four people in them. If the backseat occupants outweigh the front and you have baggage in the baggage compartment.. be prepared for for "strange" handling characteristics.

The only thing I'd advise here; and it's been said a few times; don't switch back and forth (Piper/Cessna) while you're training.

Mike fright... I can sympathize

I have all of my maneauvers down, but when it comes to the radio, I'm only good at it when I'm flying around our uncontrolled airport, when the FBO doesn't try to talk to me, or when there's no other air traffic in the area

I understand the communication procedures for controlled airspace, but when I start talking to the controller, I freeze up, and I trip over myself. I "get" it, but the controllers usually give out unfamiliar directions, or instructions that I wasn't expecting, and that's the problem.

I'm also not familiar with pilot-to-pilot communications, and i'm still not sure how to react when other pilots try to talk to me.

What get's me is that everyone always seems to be layed back on the radio, and even make communications in a conversational style. I wish I could be that familiar and comftorable with communications.