I recently bought this synth Roland EG-101 (second hand). It has got good synths and drums. The best feature is the D-beam I think. I think it has got a bit limited features for a experienced musician like me but it's a good source for techno samples. Actually it's a very nice and fun synth to jam with. Also a good creative source when developing new musical ideas.
If you want to read more about this synth, please visit vintagesynth.com EG-101 page.