MadTracker- This one is stable, great sound, and does vst instruments and samples.
Axs for windows beta- hard to find but a great synth, and tracker
Vst host- this will let you run many free vst soft synths, like minimogueVa and 8-track an 8 track recording studio
These are all you need, If anyone knows a free host I will put up a software pack with samples ready to go
just email me. firstname.lastname@example.org