As the great Larry Norman said, "Why should the devil have all the good music?" You know, it's funny, the outdated hymns that everyone sings because they are supposedly so sacred were written to popular tunes of the day. Most of them are just common bar songs rewritten with sacred lyrics. So in essence, what you are doing is writing modern day hymns :)

It's cool that you are that good with the electric guitar. I can only play basic stuff with a few fillers, but not well enough to get away with playing in a good band. I really miss drumming though; I once played drums for a band that was good enough to get big, but sadly broke up.

Oh, and I'm quite familiar with the Mandolin. I don't play, but I've been to churches that use it in worship, and it does add a nice touch. I've also heard a Hawaiian worship team that used ukulele, and that was great too :)