I know you said your on a tight budget but we use an edge appliance from www.rocksteady.com called a RockBox it does a great job of bandwith shaping but it is no cheap. Lots of other features make it worth the money though.
Tell them Charlie from Wisp Gear sent ya...they are great people to work with. -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
