Mag, what kind of guitar are you using. The instrument should fit your limitations and style rather than the other way around. Most of the folks that I've seen who complain that their fingers are too short, are really only lacking in wrist flexibility. The MUCH repeated story of Segovia's short pudgy fingers has merit. In his bio however he said that at age 85 he still practiced 8-10 hours a day! Jeez, he should have done it for a living!

Dani, listen to Pete Seeger play blues on the Banjo. He did a nice job. The album "Goofing Off Suite" on Smithsonian Folkways shows off his playing well.