Hey, I'm looking at starting to use a sampler. (After using software ones that just don't cut it for me). I'm looking for good layer/multisampling abilities, and lots of modulation/filtering capabilites. I've checked out the ESI-2000. Is thig going to be good for what i need? I want something that 3 years down the road I won't out grow...

What is the difference between it and the ESI-4000? What does the Turbo card realisitcally give me, and is it worth the upgrade?

Finally are there any other samplers that might work better (I've looked into the Yamaha A3000, and Korg Triton-as a rompler too).