you know what
we could be here all day answering that one
it's way too general. you want to narrow it down for us?

what style of music ?
can you play an instrument ?
how much money do you have ?
do you really want hardware , or will sftware do for now?

check out turnkey for a good selection of monitors keyboards synths
drum machines

www.turnkey.co.uk

and tell us what you have found maybe we can get our heads together
and get some options going