I have an MC-303. I appreciate all it taught me about
writing and sequencing, but the most important lesson I
learned is this:
Any gear that claims to be good for all genres, isn't
very good for any genre.
I write trance, which is pretty far away from jungle,
but I should have bought something else. I suggest
saving up and buying good high-end gear. If you're
serious, anything less than the best, professional
gear, will be a waste of money and you'll regret it in
6 months time.
Also, the MC-303 does not work well when sequenced from
an external sequencer (such as a computer running Logic
or Cubase). On the plus side, it will act as a 16 part
instrument when used in sound module mode (as opposed
to 8 when in instrument mode), but to make any
resonance and cutoff changes, etc., you have to use
SysEx, which is a pain in the butt regardless of how
experienced you are, or become.
Down the road it does not play well with other gear (on
a technical level), and next to any REAL gear, or even
mediocre gear like the Korg Electribe series, the
MC-303 sounds really wimpy and weak.
Get a sampler and stack it with RAM. Get a good
sequencer. Then but a real synth. You can write some
kickass jungle with alot of little short samples.
Take my advice or leave it, but don't waste your time
with the MC-3