MPC1000 is a great machine. And at about $1000 (500-700 used), the MPC1k is a great choice for Akai pads. But do not let the MPC Akai brand name, and MPC whores keep you ignorant of other sampling hardware...
MC-808 is newer technology being recently released from Roland's new line of gear for about $1100.00. Have you ever tried the 909? Well, the 808 is very similar for a few hundred less and half the size making more portable. From what I understand, has more polyphony than the 909 and borrows sampling/sequencer capabilities like it too. Throw in Motorized faders, D-beam, USB and compact flash, with software for both MAC and PC to allow sample and patched editing and being able to swap files back n forth makes it a plus.
I'm not sure if the 808 borrows the same synth section as the 909 which is basically XV synth with SRX expansion capabilities. If the 808 does not share this, i'd suggest looking into the 909 instead for like $200 extra. Having a sampler and the XV section in one box is slick, especially for a streamlined studio.
Both the MPC1000 and
the MC808 are awesome for live performance. Again, PRICE AND FEATURES to each end user is what one should be looking for. Just cuz it bares the MPC name, doesn't mean it's always better.
I own (have owned) Akai and Roland samplers, I've never had regrets with either of them since my first MPC60 and S-330 lol
"In the end, it's not the hardware, it's creativity that matters..."