I recently found good substitute for a electronic drum kit is the Korg Cliphit. Very satisfying to play with. And a cheap Synth to madly make techno on is the Korg Kaosillator. Couple of batteries a speaker and you got portable drum and synth sounds at your fingertips with the xy pad. Both these products are fairly cheap and a good intro to electronic music.
If you get the Pro you can plug it into a DAW like FL.
Enjoy making beats n sounds.