I'll have to agree with Swissmaster Cheese.
If you do not know what a Multitraker is you are no where close to start recording.
Good studios take time to build one piece at a time. Most of the time you find out the exact piece of equipment you need when you reach a creative plateau and when you have mastered the current equipment you have.
All you have is a computer and an MPC. I could think of a dozen things missing in that set up.
How good is the PC you have? PC's can be a pain in the ass when it comes to music. They are very unreliable if they are not powerful enough.
Start with a lowcost TASCAM Multitrack Tape recorder.
TASCAM MF-P01 Portastudio - $99.99
(also get a bunch of HIGH Position Tapes)
A lowcost Mixer
Eurorack UB1002 - $59.99
Low cost Powered Monitors
Rland MA-8BK - $99.99
A set of headphones and a good MIC and there you go !
You will master this equipment and outgrow them AND YOU WILL KNOW EXACTLY what you need to upgrade to. Trust me. When its time to upgrade just take the old equipment and trade it in and upgrade.
But in the time being you will get very good at the art of production and put out a lot of Hits for your local MC's.
Good luck.