I would highly suggest if you get the 1000 you get (a) get a newer one, as the old ones did have pad issues. Any of the black ones should be fine. The Blue ones had pads that go out for a lot of people. It's a $180 fix for the pad upgrade. Aside from that it's built well, mine worked perfectly when I had to sell it. (b) Upgrade to JJOS, even just free for now. There are several tiers. But even the free one fixes major bugs in the Akai software that comes on it. (c) Seriously get the guide sold here
http://www.mpc-samples.com/product.php/ ... e-mpc1000/ (I dont work for them it's legit) and by the time you've gone through that bad boy you will have conquered the (kinda steep) learning curve. In a few months after I could walk up to any hardware MPC and bang a beat out, even if some specific features were different.
I will recommend that you take the plunge. The workflow is so inspiring in and of itself to me. Shortly after learning the basics of the thing, I started making all my beats STANDING UP! It really becomes a transparent tool. Sure, I still use Sound Forge to chop samples but you can make program templates galore for drums & even instruments so you have a "pallete" of building blocks that's easy to build from, have you a template in your Daw to record everything & maybe host vst instruments, then kick your chair on the floor.
I must ask, though, have you considered the newer ones with MPC software that runs on the computer? They seem to have come a long way in a short time. It's really moving towards being a complete solution.