Transposing to Pep

It was recently suggested to me that I try making some pieces for my school's pep band. Since I've been working on learning Requiem for a Dream on the piano, I decided it would be interesting to try and arrange that for pep band. (Drum set, guitar, bass, banjo, sax, trumpet, trombone.) I'm finding some difficulties, though, and I was wondering if anyone had any particular ideas on how I might be able to help add more "energy" to the song. :)

Well I'm looking to for some pieces that are already arranged for a school band (couple of rhythmic guitars,lead guitar, couple of violins and a lead violin, keys, percussions ) and a nice choral ...

something "classical" ...

I'm sure a piece from a movie about going to hell is totally appropriate for a pep band.

I'd give the cello part to the alto's for more interest. Alto's in their lower registers would make that sound mysteriously to have a good feel. To add more energy I'd recommend that you have to keep the song moving at all times, keep adding tension and maybe switch parts once in a while to keep the audience's attention. It all lies in orchestration and articulation/dynamics. I hope that helps and wasn't what you already knew.