The MPC is a sampler, but it's going to give you WAY more options for sampling as compared to the Korg. With the MPC you can construct kits as well, and load in tons of samples and trigger them all with pads. There's a lot to the MPC. They are essential in HipHop production as a "hardware" unit. You can go software if you choose, but if you want the portable set up you'll need an MPC. There's also the new MPC-1000. Cheaper version of the big dog.

E-Mu actually had a BEAST for HipHop, that could be controlled via the pads or an external midi keyboard. I can't remember the model number though. There were severl models in the line. They all had the same design but differnt colors, and each one was geared for something different. I'll try and find that model number.

Squeak