Ortro just created in August. Looks like they'd be happy to have guinea pigs er... I mean new users.

It does sound interesting.
Looking around for other stuff I did see find something called CosBatch that claims to be a low cost alternative to TWS/Maestro:
http://www.cosbatch.com/technical/ti...aestro_goo.htm
Haven't used that so don't know how good either it or Ortro is. Ortro being open source might be the way to go if you don't have a budget.