I am afraid, this is not the right budget range for this project, as we need to pay very high to the higly skilled J2ME guys we have
We have a solid team working in J2ME applications, and have created complete accounting packages for mobile using J2ME
We can deliver you the alerts modification application the way you want for black berry if you can stretch your budget to $1000 or so
Can send you our accounting application example which we hv recently developed
Thanks