I just can't recommend the korg electribe boxes enough for cheap hardware that can do so much and is so easy and fun to play. In my first encounters with them I would wish for things like an asdr and multiple outs for the voices, but when you are creative with the options that are there the possibilities are endless, esp since they each have a digital delay built in, and a little modulation sequencer that will save and repeat your knob movements. you might be able to read the parameters the knobs control with the giant pictures i found:
the best 'bang for the buck' by far in the series is the esx-1 sampler that you can load samples onto with a smartmedia card. it has the only loophole in all the electribes that i've used to sequence chords, by monophonic sequencing of a sample of a chord. the biggest limitation of the electribes is the monophonic sequencing, and they also don't have a sound that upon close listening at home that you'll probably fall in love with the way you might with real analog gear
If you have to be able to record and sequence polyphonic midi data, the cheapest and most fun device i've come across is the rm1x. It has its own synth engine with 16 channels and 64 voice polyphony. there are some really dope organ drum machine samples and the standard roland techno fare, but the sound quality is a serious step down from the korg electribes. not really a problem if you are just into busting out some dirty gritty cheap sounding variant of whatever sound you are most into.
the rs7000 which is almost an rm1x with a sampler added on is also a great value that will do so much for you and is fun to play.
ive scored all of these at prices that i couldn't pass on:
er-1 mkII: 150
ea-1: 75
esx-1: 225
rm1x: 150
rs7000: 500
i've always been fine with cheap yamaha and mackie mixers that have effects sends as well, but I would probably wouldn't even take a behringer for free.
also I recommend to stay away from all roland grooveboxes. they are always, always in my experience really really hard to program and do anything with, and always have serious issues with note-stealing and timing whenever you add on the notes and parts, especially at the first beat of every measure
yeah boyeee