Frankive,
On the Windows platform, it's probably Cakewalk Pro Audio (which includes lyrics/notation as well as full midi/digital audio editing capabilities)
http://www.cakewalk.com/Products/PA/PA9.html or Cakewalk Home Studio $129.00
http://www.cakewalk.com/Products/HS/HS9.html BTW, The newest incarnation (version) of Cakewalk "Pro Audio" is now being called Sonar and is being released at the end of this month
http://www.cakewalk.com/Products/SR/SR1.html Another immensely popular(and great bang for the buck at $29) midi/digital audio program is Power Tracks. I believe version 7 even includes lyrics and notation printing as well.
http://www.pgmusic.com/powertracks.htm Scott
[This message has been edited by Scottyee (edited 03-23-2001).]