I've added a few more features to the (ruby script) midi2sco app that I wrote a while back (http://www.csounds.com/node/87), that I hope may make it a little more versatile.
It now (by default) separates instrument parameters in the file it generates with tabs rather than spaces. This doesn't hurt the output as a Score file at all, but makes it also acceptable to a spreadsheet program, so you can conveniently tweak parameters further if you wish.
It will also tag each instrument event with the note name, MIDI note number, and velocity, as a comment, so you can find your way around the file more easily.
There is now a way of adding (fixed) elements to the output for an instrument, which can also be used for identifying comments (where an instrument might have more than one source channel for instance), or to supply extra fixed parameters, rather than having to edit them in afterward.
Hope it's useful to you.