Remember the old days??
...Does Fast Tracker (or even Octave) ring a bell??
Well it does to me.... (I actually tried to do my first tune using this tools)
Check out Renoise 2.0 and don't forget to spend some time in the In:Depth part...
They got quite an active community over there... quite worth looking!!
To finish the day I'd thought I'd post quite an handy e-book called: DIY Production for Begginers by Michael W. Dean and Chris Caulder.
Both these guys are very worth checking out!!!
Fantastic work for newbies and free/cheap resource guide!!!