It's safe to say that there's not much this product can't do. Finale has the reputation of being difficult - although those who use it regularly find it less and less intimidating. My minister of music, for example, wrote a fantastic choir anthem, dedicated to our pastor, using Finale. He composed arrangements for accompanists, including flute and clarinet parts and a version for choir members. He even printed a copy on parchment-like paper that was framed and presented to our pastor.
Finale comes with on-line help extensive reference manuals.
Our friends over at Cakewalk have two new products you'll want to look at seriously. Scorewriter is a basic level program. All the MIDI features that you'd expect are included and you can add lyrics and rehearsal marks as necessary. Tenor, alto, soprano and mezzo soprano clefts are available. You can have 16 staves with four voices per staff with an unlimited score length.