looking for a new bike

I ride a gsx-r 600 and I am looking for a bigger bike.
I like the gsx-r and am looking at the 750 or 1000 maybe
even a busa. But I just started looking at the ninjas 7r,9r
,10r,12r, but I also saw the honda 929, and the 954. I know
that is alot of different bikes but I would be gratfull for any help with this, any info will help thanks.
                               

The main question is, what type of riding do you do?  All those bikes are wickedly fast but some excel a little more in different areas.

If it is track days and showing off then go with a GSXR-750/1000 or the Ninja 7R/10R.

If you do a lot of long rides and cruising and do the occasional track day then go with the Kawi 9R/12R, Busa, or a 954/929.

Good luck with your decision and have fun with your purchase.  

What hawkman996 said, but I dunno about the ZX7R.  It can definately be "stunted" or turned into a track bike but it is an older design, it's gonna be heavier than a TLR but without the torque...and the ZX636 makes more or less the same horsepower while weighing atleast a good 90lbs less.

The Busa and 12R are definately still sportbikes but they do carry around extra heft and have slightly longer wheelbases.  One nice thing about them though is that they are tiny like the latest and greatest race replicas...although a ZX9R/929/954 and '00-'03GSXR750 imo aren't as tiny as the newest reca reps either.  

One other question I had is should whether the bike is carbeurated or fuel injected play a role in which bike to pick and why.  (2000 and up)
    I know that the gsx-r and busa are fuel injected, but what about the Kawasaki 7r,9,10r,12r(2000-up)
Honda 929rr, 954rr  

They Kawasaki 7R/9R are both carburated while the Honda 929/954 & Kawasaki 10R/12R are fuel-injected.

All the bikes here should be reliable and fast so the way their respective engine is delivered fuel does not matter much.  I have a carburated 98' Superhawk and have had no problems, minus throttle notchiness which has subsided.  FI can help to make throttle on/off smoother.

Also, both have their complications, for lack of a better word,  with aftermarket parts.  A new exhaust/air filter usually requires a jet kit on carbs to get them tuned.  A FI system needs a new fuel map by way of a PCIIIr power commander.

An exhaust can just be slapped on but to get the most performance from the parts and have a nice smooth power curve tuning should be a must.  Take a look at Dan Kyle's website or Sato's dyno graphs comparing stock to exhaust to exhaust with tune.  Results can be surprising.  

I have made this statement before, and again I will say that

the best 'all around sport bike' is a Zx-12R. Speed, power

and comfort.  

I have heard that before and I was leaning toward a bigger bike like the 12r or the busa, because of my size I am not that tall (5'11") but I have a big frame I weigh 315lbs. I Know that the power is not a problem I just need a bike with a    
little more room on it. I also realize that sport bikes are not made to be roomy I just a little bigger, But I heard that the biker sport bikes like the 12r and the busa do not handle the twisties as well.  

The 12R, even more so after the improvements in the 2002

model year, is a true sport bike but with better ergos then

the latest race replicas. I know there are those who say the

12R feels heavy and does not handle the twisties. Such state

ments are usually made by those who either have not ridden

one or by a 'short tripper'.

Yes, the 12R is not as flickable as a 600 and does require

a skilled and mature rider; but with the 12R, you will be

out front on any road or with simple mods, any track.

Does it sound like I am trying to sell you on a ZX-12R? You

bet I am! To learn more, visit http://www.zx-12r.org