here are some ideas , you might try a ROLAND MC-303 . It has the drum machine , sequencer, and dance sounds all in one . If you are just recording dance music you can get a REBIRTH 338 which will run on your computer , it simulates 2 ROLAND TB-303s a TR-808 and a TR-909 so you get the sounds , drum machines and sequencing for 139.00 dollars . You then will have money left over to buy another synth to add even more sounds . You could also get the new KORG electribe series which is their compitition for ROLAND's MC-303 and MC-505 .