well, i don't know of any good 2 mallet solos...but i know a couple of good 4 mallet ones for mirambia, but they are on the more diffucult side.
Yellow after the rain by Peters
Frogs...don't know who wrote it
Mexican Murals...don't know who wrote it

Frogs - Keiko Abe
Mexican Murals - Thomas Brown

If you want some hard 2-mallet peices then try Prism by Keiko Abe. There's also a six-mallet concerto part to it called Prism Rhapsody and there's also Prism Rhapsody 2 for 2 marimbas.

I also have a piece I bought at Pasic called Valse Serbe by Nebojsa Jovan Zivkovic for Marimba and Klavier. It's gots the notes, my friend.

Hey! Darkquad

Where did you order your music you suggested

Keep person-to-person communications in PMs.

Well darkquad you beat me to prism, as for a 4 mallet piece with all rolls that isn't difficult Zen Wanderer by Mitchel Peters is all rolls, but I think prism is a better piece.

For places to order music , I say go to either www.steveweissmusic.com or www.percussionspecialist.com

Another peice with a choral feel would be Colors (I forgot the composer), and Waves by Mitchell Peters. If you're a lil more advance check out Memories of the Seashore by Keiko Abe , My Lady White (first mvmt.) , or Etude for A Quiet Hall by Christopher Deene.

I have witnessed a 2 mallet solo of The Flight Of The Bumblebee and that is quite a challenge to someone still on 2 mallets who has not moved on to 4 mallets. Flight of the Bumblebee can be considered a nice final exam before moving on to 4 mallets..

As is Hungarian Dance no.5

Most advanced piano stuff is what i use, mainly the right hand. Fantaisie impromptu is quite something. Rondo Alla Turca is a nice warm-up for me.

any/which of these pieces would be good to audition for a corp with?...possibly one that most other people wouldnt be playing. and also where can i get most of these pieces for not that expensive (im kinda broke after paying for 1/2 of drumline )