Hello and welcome!
About your question...hmm
It's a bit like asking a complete stranger what kind of a car is best for you..
This is something that we can't help you with, you have to do the research yourself. Go to the guitar center to play with it for
at least a half an hour so you get to know the machine a little bit, and to get some feel for the pads and ish.
Now of course this being an mpc-forum, we all love our mpc's and gladly recommend others to try 'em out too, but we can't know what best suits your needs.
What kind of music are you planning to make?
What do you think you can do on the mpc that you can't use your existing gear on?
What are you looking for in the mpc; the feel of the pads? The sequencing? The centerpiece of your studio?
I am trying to come in the producing world, so i will get whatever to help me.
Better and pricier gear won't make your beats better. You can do nice stuff with FL and Reason if you take your time to learn the programs. Don't jump on the mpc bandwagon just because you heard it's the heat of the moment.