That's two VCOs, two filters and something like a delay module.
To be honest I think you're better off with one of Doepfer's premade combos, like the Mini-system:http://www.doepfer.de/a100s_e.htm
The reason why is that you'll get the basic utility modules that would make up a complete voice with a rack and power supply included. And it's MIDI compatible.
And when you get the swing of things you can start expanding and buy my modules that will hopefully be out this year.